TB-4/Thymosin Beta 4

A to Z Guide on the Wound Healing TB-500

TB-500, also known as Thymosin Beta 4 (TB-4), is a synthetic version of a naturally occurring peptide that plays a pivotal role in tissue repair, immune modulation, and cell regeneration. Originally isolated in high concentrations from blood platelets and wound fluid, TB-500 accelerates healing, reduces inflammation, and aids in recovery from injuries—especially in connective tissues, skin, muscles, and even heart tissue.

TB-500: Key Functions and Benefits

  • Enhanced Wound Healing: Stimulates tissue regeneration and cell repair, making it effective for skin, ligament, and muscle injuries.
  • Reduction of Inflammation: Exhibits potent anti-inflammatory effects, accelerating overall recovery.
  • Supports Connective Tissue Repair: Promotes healing in tendons, ligaments, and muscle injuries, contributing to structural integrity.
  • Hair Growth: Encourages hair growth through stem cell activation in hair follicles.
  • Cardiovascular Health: Shows potential in heart tissue repair, aiding in cardiac recovery following trauma.

How TB-500 Works

TB-500’s healing capabilities largely stem from its ability to upregulate actin, a protein crucial for cell movement and tissue repair. Actin is integral to a series of wound healing stages, including inflammation, collagen deposition, and tissue remodeling. By increasing actin levels, TB-500 enhances cellular processes vital for tissue repair and regeneration. Additionally, TB-500’s unique molecular weight and structure allow it to travel throughout the body, targeting injury sites and initiating repair processes even if not applied directly to the wound site.

Mechanism of Action

  1. Actin Regulation: TB-500’s active segment, LKKTETQ, binds to actin, facilitating cellular migration and the formation of new cells, blood vessels, and muscle fibers.
  2. Systemic Reach: Due to its low molecular weight, TB-500 can travel long distances in the body, allowing it to locate and act on areas in need of repair.
  3. Angiogenesis: TB-500 induces angiogenesis, or the formation of new blood vessels, enhancing nutrient and oxygen flow to damaged tissues.
  4. Stem Cell Activation: TB-500 activates stem cells, especially in hair follicles and damaged tissues, further aiding in recovery and regeneration.

Clinical Research and Applications

Acute and Chronic Wounds

  • Acute Wound Healing: Studies on rats have shown a 41% increase in wound healing when TB-500 is administered topically or intraperitoneally. TB-500 stimulates re-epithelialization, collagen deposition, and wound contraction, significantly improving healing speed in full-thickness wounds.
  • Chronic Wounds: TB-500 has been tested in chronic wounds like diabetic ulcers and pressure sores, with clinical trials indicating accelerated healing times by promoting stem cell migration and reducing inflammation.

Cardiovascular and Pulmonary Applications

  • Heart Repair: TB-500 has shown potential in protecting heart tissue, particularly by reducing right ventricular hypertrophy in pulmonary hypertension studies on mice. This suggests its promise in cardiac regeneration and protection.
  • Post-Stroke Recovery: Research is exploring TB-500's role in brain and neurological repair, potentially helping reduce damage from ischemic events and enhancing neural recovery post-stroke.

Hair Growth

In animal studies, TB-500 has demonstrated the ability to activate and migrate stem cells in hair follicles, promoting hair growth and improving follicle density. This finding is being further investigated as a potential treatment for hair loss in humans.

Eye Health and Repair

Early studies have shown that TB-500 may aid in healing corneal injuries and chronic dry eye symptoms, particularly in diabetic individuals prone to eye complications.

 

Reconstitution and Storage: TB-500 powder should be reconstituted with bacteriostatic sodium chloride and stored in the refrigerator after the first use.

Side Effects and Considerations

TB-500 is well-tolerated with minimal reported side effects. Common side effects, though rare, may include mild nausea, fatigue, and flu-like symptoms. 

 

Summary

TB-500 peptide is a 43-amino acid containing peptide proven to demonstrate excellent results in wound healing, tissue repair and increased immune system. Recent studies have also shown TB-500 peptide to induce hair growth upon administration.

All research and clinical studies of this peptide have demonstrated a highly safe, efficacious, and non-toxic drug profile with little to no side effects. It must always be taken into consideration that this peptide is still under clinical trials and is prohibited for use by WADA athletes.

Should you consider doing research with TB-500, consider all the above evidence, and seek medical advice for a tailored prescription based on an individual profile.

TB-500 (Thymosin Beta-4)

Thymosin Beta 4, or TB-500, is a synthetic version of a naturally occurring 43-amino acid peptide present in nearly all human and animal cells studied.

AA 2010 study in the 2010 study in the Annals of the New Annals of the New YYork ork Academy of Sciences supported Academy of Sciences supported TB500’ TB500’s potential for cardiac muscle repair following s potential for cardiac muscle repair following injury, eg, after myocardial infarction (heart attack). Recognizing the limitations of stem cell therapy for this application, TB500 was found to inhibit myocardial cell death, stimulate blood vessel growth, and activate cardiac processes that encouraged the heart to heal following injury heal following injury.. The investigation showed that The investigation showed that TB500 may be the first agent which can actively recover injured cardiac TB500 may be the first agent which can actively recover injured cardiac muscle following heart attack. This is further supported with prior mouse studies in 2004 showing cardiomyocyte migration, survival and repair of myocardial damage. [1] [2]

Filamentous actin (F-actin, or actin) forms polymers that thicken sputum, adversely affecting cystic fibrosis patients. TB500 was studied in a population of CF patients, showing a dose- and time-dependent decrease in cohesivity of sputum after administration of TB500 when combined with dornase alfa. The combination therapy showed a 71% improvement in mucociliary transport of mucus, and a 44% improvement in cough transport of mucus. [3]

TB500 is known to stimulate myoblasts and myocytes (muscle generating cells). Mitochondrial RNA levels of TB500 have been shown to increase following muscle injury, helping to regenerate muscle fibers and address inflammation in the injured location. The data support muscle injury causing increased local production of TB500, promoting migration of incoming myoblasts to accelerate skeletal muscle regeneration. [4] TB-500 (Thymosin Beta-4)

Thymosin Beta-4 is a 43 amino acid peptide sequence. In animal models, Thymosin Beta-4 has been shown to improve blood vessel growth, regulate wound healing, decrease inflammation, and reduce oxidative damage in the heart and central nervous system. Thymosin-beta-4 has a role in protection, tissue repair, regeneration and remodeling of injured or damaged tissues. It is also of active interest in anti-aging research.

TB-500 Peptide (Thymosin Beta 4)

Sequence: : Ac-Ser-Asp-L Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-L ys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-L ys-Phe-Asp-Lys-Ser-L ys-Ser-Lys-Leu-L ys-Leu-Lys-L ys-Lys-Thr-Glu-Thr-Gln-Glu-L ys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro- ys-Asn-ProLeu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser

Molecular formula: C212H350N56O78S

Molar Mass: 4963.4408

CAS number: 77591-33-4

PubChem: CID 16132341

Synonyms: Thymosin Beta 4

TB-500 Research Studies

A study completed in 2009 using .01% TB500 w/w eye drops demonstrated increased speed of healing following eye surgery in diabetics. This population was specifically investigated due to well known healing complications in diabetics, and their predilection for eye issues, specifically diabetic retinopathy for eye issues, specifically diabetic retinopathy.. The study showed no serious side ef The study showed no serious side effects in any patient, although headache, fects in any patient, although headache, dizziness and insomnia occurred more in the study group than the control. Of specific interest, human diabetic retinopathic corneas express substantially less endogenous TB500 than a normal cornea, suggesting an inherent deficiency in ability for diabetics to heal following eye injury or surgery diabetics to heal following eye injury or surgery.. [5] [5] Similarly Similarly, chronic dry-eye patients were treated with , chronic dry-eye patients were treated with TB500 eye drops, and all TB500 eye drops, and all in the study had improvement in symptoms, with rare and minimal complications. [6]

TB500 was studied in the setting of chronic hepatitis B combined with nonalcoholic fatty liver disease (NAFLD). While TB500 had no correlation with HepB V no correlation with HepB Virus levels nor liver function tests (AST irus levels nor liver function tests (AST, , ALALTT, , TG), there was a negative correlation with inflammation and TG), there was a negative correlation with inflammation and fibrosis scores – meaning that the lower the level of TB500, the worse the inflammation and fibrosis. This provided preliminary data that TB500 may be beneficial in the setting of certain liver diseases. [7]

A human voluntary safety and tolerance study was performed in 2010, and showed that intravenous (IV) doses from 42mg up to 1260mg daily for 14 days had no treatment related adverse effects, and no evidence of dose related toxicity. [8]

 Rhinovirus (a common cold virus) was introduced to healthy volunteers, and blood tests were taken during a five-day period. This showed that serum cortisol rose along with thymosin alpha 1 and TB500 on the fifth day following intentional exposure. Simultaneously, t-lymphocytes (CD3+), cytotoxic/suppressor (CD8+), and natural killer (CD16+) cells all rose. This suggests a cooperative effect among systemic and cellular immune response related to thymosin and respiratory virus exposure. [9]

Kidney disease often includes inflammation, fibrosis, and complications from diabetes. TB500 has been studied in mice with and without kidney disease; in healthy mice, levels of TB500 did not affect healthy kidney tissue, but in those with known kidney disease, low levels of disease, low levels of TB500 correlated with worsening disease. TB500 correlated with worsening disease. That is, low levels of natural That is, low levels of natural TB500 accelerated kidney disease. TB500 accelerated kidney disease. The study suggested that endogenous TB500 levels function to protect the kidney and slow disease progression. [10]

 TB500 has been studied specifically in healing of skin and wounds, showing acceleration in healing of skin in burns, diabetic ulcers, elderly subjects, pressure ulcers, stasis ulcers, and epidermolysis wounds, in both animal and human subjects. The study shows improvement in angiogenesis (blood vessel formation), anti-inflammatory activity, and to increase platelet aggregation at wound sites. [11] A meta-analysis (study of studies) conducted in 2015 showed broad applicability of TB500 in various disease processes, including improvement of tissue regeneration, repair of the heart after heart attack, healing of the brain following stroke, trauma and neurological diseases. Further, it showed clinical improvement in kidney and liver diseases, and repair of spinal cord, bone and ligament injuries, as well as reducing consequences of aging and viral infection. [12] TB500 treated mice were found to have substantially improved strength in healed fractures compared to untreated mice. Treated mice showed a 41% increase in peak force to failure, and healed fractures were 25% stiffer than untreated mice. 21-day postfracture imaging showed improvement up to 26% better than untreated subjects. They also showed 23% smaller callus, and a 31% increase in trabecular bone area/total callus area. Overall, TB500 demonstrated substantially faster healing, with betterhealed injury sites when compared to placebo subjects. [13]

 Spinal cord injury has been studied in rats, with potential applicability to human subjects. In a 2014 study, TB500 was administered to rats 30 minutes, 3 days, or 5 days after mild compression induced spinal cord injury in rats. Locomotor and behavioral assessments were all markedly improved with the TB500 treated group. Inflammatory cytokines were reduced, the size of scars were markedly reduced, and levels of myelin proteins were 57.8% above the control group. The study suggested that, with the known safety of TB500, that it should be considered for treatment of spinal cord injury in humans. [14]

While no animal model perfectly mimics humans for head injury research, rats are considered a close second due to our understanding of their behaviors. TB500 has been studied in traumatic brain injury (TBI), and has been demonstrated to markedly improve function after improve function after TBI. TBI. TB500 exerts both neuroprotective and neurorestorative ef TB500 exerts both neuroprotective and neurorestorative effects on rats, including proliferation of blood fects on rats, including proliferation of blood flow, new brain cells, and new connections between brain cells. [15]

Multiple sclerosis has also been shown, in rat models, to benefit from administration of TB500. Zhang et al, in their 2016 study,, showed that administration of TB500 significantly increased the number of newly generated oligodendrocytes and reduced axonal damage in the mice compared with control group. Importantly, the newly generated oligodendrocytes remyelinated axons, and this correlated with functional improvement. [16

TB-500 is a synthetic peptide version of the naturally occuring healing protein present in about all human and mammalian cells known as Thymosin Beta 4 (TB4). Research has shown TB 500 to have beneficial effects on wound healing, injury recovery, flexibility, and inflammation. These desirable effects are accomplished through TB 500’s influence on blood cell and blood vessel development, cellular differentiation, and cell migration. A major part of its healing capability stems from the peptide’s regulation of actin, a cell building protein essential to healing and wound repair.

TB-500 Dosage

TB500 comes as a freeze dried (lyophilized) powder. Research has shown that best results are achieved when bacteriostatic sodium chloride 0.9% is used to reconstitute thymosin peptides. TB 500 dosages can range from 5mg to 20 mg per week. Administration is generally divided into 2-3 injections per week. Once the peptide is built up in the system, the weekly dosage is generally lowered a bit to a maintenance dosage of about half or less of the original weekly dose. Administration of maintenance dosage can be made once per week.

TB500 is typically injected subcutaneously, though it can also be injected into muscle if desired.

How to Store TB 500: Store the product at room temperature in a non-humid environment. The vial should be shielded from light. An opened vial can be kept for up to 8 days refrigerated.

What is TB-500

TB 500 research illustrates multiple properties that have provided the impetus for a worldwide series of clinical trials of potential effectiveness for thymosin beta-4 in promoting repair of wounds in skin, cornea and heart. Thymosin beta 4 is produced in the thymus gland and is found in high concentrations in wound fluids. As such it has been observed to facilitate healing of injured tissue in the body.

TB-500 is a naturally occurring peptide found in high concentrations in blood platelets, wound fluid and other tissues. TB-500 peptides for research are not growth factors; rather major actin regulating protein peptides. TB 500 has been found to play an important role in protection, regeneration and remodeling of injured and/or damaged tissues. The gene for Thymosin Beta-4 has also been found to be one of the first to be stimulated after an incident of injury.

Present in almost all human and animal cells, Thymosin Beta 4 is naturally occurring wound healing peptide. TB 500 is a synthetically made version of TB4 that facilitates healing and recovery by helping build new blood vessels, muscle tissue fibers, blood cells, and facilitating cell migration. For the overworked or injured individual, TB 500 offers extremely enticing wound healing effects.

How Does TB 500 Work?

TB 500 is able to help recovery by exerting effects on actin. By up-regulating this cellular protein, TB 500 is able to capitalize on actin’s positive effects. These include the promotion of cell migration and proliferation. As a result, new blood vessels form and inflammation can be regulated so that healing and recovery are optimised. In addition, TB 500’s unique molecular structure allows it to travel long distances in the body. This enables it to exert a “systemic” effect, seeking out and helping those areas of the body suffering injury. Further beneficial results of TB 500 administration can include reduced inflammation and enhanced flexibility. There have even been some reports of regrowing and darkening of hair.

What TB 500 Side Effects Are There?

There are many positive effects associated with Tb500 use, including enhanced recovery, reduced inflammation, and improved flexibility. The peptide works very effectively to aid recovery of slow healing injuries such as those to connective tissue, i.e. tendons and ligaments. Muscle injuries and injuries to skin are greatly helped as well. From reports from users and researchers around the globe, TB 500 seems to cause very few, if any, serious negative side effects.

Most peptides generally can produce a lightheadedness or nauseous feeling upon injection. Also, flu-like symptoms are prevalent among many other peptides as well. However, the incidence of these negative side effects occurring with TB500 administration is reported to be very low, if at all. TB 500 appears to be a very well tolerated peptide among users.

The information presented on this web site is not intended to take the place of your personal physician’s advice and is not intended to diagnose, treat, cure or prevent any disease.

References:

1 - Ann N Y Acad Sci. 2010 2010 Apr;1 Apr;1194:87-96. 194:87-96. Thymosin beta4 and cardiac repair Thymosin beta4 and cardiac repair.. Shrivastava S1 , Srivastava D, Olson EN, DiMaio JM, Bock-Marquette I..

2 - Nature. 2004 Nov 25;432(7016):466-72. Thymosin beta4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair.. Bock-Marquette I1 , Saxena A, White MD, Dimaio JM, Srivastava D..

3 - Chest. 2006 Nov;130(5):1433-40. Thymosin beta4 sequesters actin in cystic fibrosis sputum and decreases sputum cohesivity in vitro. Rubin BK1 , Kater AP, Goldstein AL..

4 - J Biochem. 2011 Jan;149(1):43-8. doi: 10.1093/jb/mvq115. Epub 2010 Sep 29. Muscle injury-induced thymosin β4 acts as a chemoattractant for myoblasts. Tokura Y 1 , Nakayama Y, Fukada S, Nara N, Yamamoto H, Matsuda R, Hara T..

5 - https://clinicaltrials.gov/show/NCT00598871

6 - Ann N Y Acad Sci. 2010 2010 Apr;1 Apr;1194:199-206. doi: 10.1 194:199-206. doi: 10.111111/j.1749-6632.2010.05471.x. 1/j.1749-6632.2010.05471.x. Treatment of chronic nonhealing neurotrophic corneal epithelial defects with thymosin beta4. Dunn SP1 , Heidemann DG, Chow CY, Crockford D, Turjman N, Angel J, Allan CB, Sosne G..

7 - Medicine (Baltimore).2016 Dec;95(52):e5763. doi: 10.1097/MD.0000000000005763. The expression of thymosin β4 in chronic hepatitis B combined nonalcoholic fatty liver disease. Liang J1 , Cai W, Han T, Jing L, Ma Z, Gao Y..

8 - Ann N Y Acad Sci. 2010 2010 Apr;1 Apr;1194:223-9. doi: 10.1 194:223-9. doi: 10.111111/j.1749-6632.2010.05474.x. 1/j.1749-6632.2010.05474.x. A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers. Ruff D1,, Crockford D, Girardi G, Zhang Y..

 9 - Lymphokine Res. 1989 Winter;8(4):383-91. Modulation of thymosin alpha 1 and thymosin beta 4 levels and peripheral blood mononuclear cell subsets during experimental rhinovirus colds. Hsia J1 , Sztein MB, Naylor PH, Simon GL, Goldstein AL, Hayden FG..

 10 - Kidney Int. 2016 Nov;90(5):1056-1070. doi: 10.1016/j.kint.2016.06.032. Epub 2016 Aug 26. Loss of endogenous thymosin β4 accelerates glomerular disease. Vasilopoulou E1 , Kolatsi-Joannou M1 , Lindenmeyer MT2 , White KE3 , Robson MG4 , Cohen CD2 , Sebire NJ1 , Riley PR5 , Winyard PJ1 , Long DA6..

11 - Vitam Horm. 2016;102:251-75. doi: 10.1016/bs.vh.2016.04.005. Epub 2016 May 24. Thymosin β4 Promotes Dermal Healing. Kleinman HK1 , Sosne G2..

12 - Expert Opin Biol Ther.. 2015;15 Suppl 1:S139-45.doi:10.1517/14712598.2015. 1011617. Epub 2015 Jun 22. Advances in the basic and clinical applications of thymosin β4. Goldstein AL1 , Kleinman HK..

13 - J Orthop Res. 2014 Oct;32(10):1277-82. doi: 10.1002/jor.22686. Epub 2014 Jul 8. Thymosin β4 administration enhances fracture healing in mice. Brady RD1 , Grills BL, Schuijers JA, Ward AR, Tonkin BA, Walsh NC, McDonald SJ..

14 - Neuropharmacology.. 2014 Oct;85:408-16. doi: 10.1016/j.neuropharm.2014.06.004. Epub 2014 Jun 14. Beneficial effects of thymosin β4 on spinal cord injury in the rat. Cheng P1 , Kuang F1 , Zhang H1 , Ju G2 , Wang J3..

15 - Ann N Y Acad Sci. 2012 Oct;1270:51-8. doi: 10.1111/j.1749-6632.2012.06683.x. Neuroprotective and neurorestorative effects of thymosin β4 treatment following experimental traumatic brain injury.. Xiong Y 1,, Mahmood A, Meng Y, Zhang Y, Zhang ZG, Morris DC, Chopp M..

16 - Neurobiol Dis. 2016 Apr;88:85-95. doi: 10.1016/j.nbd.2016.01.010. Epub 2016 Jan 12. Thymosin beta4 promotes oligodendrogenesis in the demyelinating central nervous system. Zhang J1 , Zhang ZG2 , Li Y 2 , Lu M3 , Zhang Y 2 , Elias SB2 , Chopp M 4..

Article

Intro

TB-4 is the synthetic version of Thymosin Beta 4, a naturally occurring wound healing peptide present in every human cell. TB-4 works by speeding up healing and regeneration of injured ligaments, muscles and tendons throughout the body giving you that Wolverine-like recovery after any injury or heavy workout.

Discovery

TB-4 was discovered during the 1960’s while researching a powerful immune organ called the thymus gland, which is located just behind your breastbone. Their research showed that the thymus gland not only helps prime the immune system but releases proteins, of which TB-4 is one, that enhances the immune system and elevates wound healing and repair.

Effects

So how does TB-4 perform its magic? TB 500 is able to help recovery by exerting effects on actin. Highly abundant protein which is the building block for muscle and then assembly structure within cells and for cell migration. Cellular skeleton within cells. By up-regulating this cellular protein, TB 500 is able to capitalize on actin’s positive effects. These include the promotion of cell migration and proliferation. As a result, new blood vessels form and inflammation can be regulated so that healing and recovery are optimised. In addition, TB 500’s unique molecular structure allows it to travel long distances in the body. This enables it to exert a “systemic” effect, seeking out and helping those areas of the body suffering injury. Further beneficial results of TB 500 administration can include reduced inflammation and enhanced flexibility. There have even been some reports of regrowing and darkening of hair.

The healing effects of TB-500 are largely due to its ability to upregulate the level of actin protein in the human body.

by helping build new blood vessels, muscle tissue fibers, blood cells, and facilitating cell migration

TB 500 research illustrates multiple properties that have provided the impetus for a worldwide series of clinical trials of potential effectiveness for thymosin beta-4 in promoting repair of wounds in skin, cornea and heart. Thymosin beta 4 is produced in the thymus gland and is found in high concentrations in wound fluids. As such it has been observed to facilitate healing of injured tissue in the body.

TB-500 is a naturally occurring peptide found in high concentrations in blood platelets, wound fluid and other tissues. TB-500 peptides for research are not growth factors; rather major actin regulating protein peptides. TB 500 has been found to play an important role in protection, regeneration and remodeling of injured and/or damaged tissues. The gene for Thymosin Beta-4 has also been found to be one of the first to be stimulated after an incident of injury.

Actins are involved in a sequence of wound healing events including acute inflammation, collagen deposition and contraction and remodeling. By promoting the levels of actin in the body, TB 500 induces the tissue repair processes which eventually leads to wound healing

TB500 is known to stimulate myoblasts and myocytes (muscle generating cells). Mitochondrial RNA levels of TB500 have been shown to increase following muscle injury, helping to regenerate muscle fibers and address inflammation in the injured location. The data support muscle injury causing increased local production of TB500, promoting migration of incoming myoblasts to accelerate skeletal muscle regeneration

Summary

(Thymosin Beta 4)  (TB 500)                                                 

Inflammation, Cosmetic

Description

TB-4 is a synthetic fraction of the protein thymosin beta-4, which is present in virtually all human and animal cells. The main purpose of this peptide is to promote healing. It also promotes creation of new blood and muscle cells. The healing effects of TB-4 have been observed in tendons, ligaments, muscle, skin, heart, and the eyes.  Thymosin beta-4 is naturally produced in higher concentration where tissue has been damaged.  This peptide is also a very potent anti-inflammatory agent.

TB-4 is different from other repair factors (growth hormone, IGF-1), because it promotes endothelial and keratinocyte migration. It also does not bind to the extracellular matrix and has a very low molecular weight.  Because of this it can travel long distances through the tissues in the human body.

One of TB-4 key mechanisms of action is its ability to regulate the cell-building protein - Actin.  Of the thousands of proteins present within human cells, actin represents roughly 10% of the total. It is thus a vital component of cell structure and movement.

Research has shown that, if the thymosin beta-4 peptide is used after a heart attack, it can reactivate cardiac progenitor cells to repair damaged heart tissue.  TB-4 is the part of thymosin beta-4 hormone which promotes the most useful effects (overall healing, repair, new blood and muscle cells).

Inflammation, Cosmetic

Injection: Suggested dosage: Inject 0.25ml subcutaneously daily for 20 days.

Eye drops: Put 1 drop in both eyes 3 times per day.

Injection:

Store frozen until 1st use, then expiry starts 42 days kept in fridge at 2°C - 8°C.

Eye drops: 

Store frozen until 1st use, then expiry starts 21 days kept in fridge at 2°C - 8°C.    (2 x 7.5ml provided. Keep 1 in freezer, while using the other one).