Thymosin Beta-4 vs Decapeptide-12
Side-by-side comparison of key properties, dosing, and research.
Recovery & RepairAnti-Aging & Longevity
Thymosin Beta-4Skin & Cosmetic
Decapeptide-12- Summary
- Thymosin Beta-4 is an endogenous 43-amino acid peptide that is the primary intracellular actin sequestering peptide. It promotes tissue repair, reduces inflammation, regenerates hair follicles, and protects cardiac tissue. Closely related to TB-500 (the active fragment), it is used for systemic tissue recovery and anti-aging.
- Decapeptide-12 is a synthetic 10-amino acid peptide developed for skin brightening and depigmentation. It selectively inhibits tyrosinase activity and downstream melanogenesis pathways, reducing hyperpigmentation, dark spots, and uneven skin tone without the irritation associated with hydroquinone.
- Half-Life
- Not well characterized; likely similar to TB-500 (~1–2 hours)
- Not applicable (topical)
- Admin Route
- SubQ, IM
- Topical
- Research
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- Typical Dose
- 5–10 mg
- 5 ppm (0.0005%) concentration
- Frequency
- 2x per week (loading), then 1x per week (maintenance)
- Twice daily (AM and PM)
- Key Benefits
- Systemic tissue repair and regeneration
- Promotes cardiac recovery after myocardial infarction
- Hair follicle regeneration and anti-hair-loss
- Anti-inflammatory (systemic)
- Wound healing acceleration
- Neuroprotection after brain injury
- Protects against ischemia-reperfusion injury
- Anti-aging at cellular level
- Synergizes powerfully with BPC-157
- Reduces hyperpigmentation and dark spots
- Evens skin tone and improves radiance
- Inhibits post-inflammatory hyperpigmentation
- Well-tolerated alternative to hydroquinone
- Effective for melasma and age spots
- Non-cytotoxic to melanocytes
- Side Effects
- Generally very well tolerated
- Injection site reactions
- Mild fatigue at initiation (repair signaling)
- Rare: mild inflammatory response
- +1 more
- Generally very well-tolerated
- Rare mild irritation or sensitivity in some skin types
- Results may take several weeks to become visible
- Stacks With
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