Thymosin Beta-4 vs Palmitoyl Dipeptide-6
Side-by-side comparison of key properties, dosing, and research.
Recovery & RepairAnti-Aging & Longevity
Thymosin Beta-4Skin & CosmeticAnti-Aging & Longevity
Palmitoyl Dipeptide-6- 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.
- Palmitoyl Dipeptide-6 is a synthetic dipeptide (lysine-threonine) with a palmitoyl fatty acid tail, designed to penetrate the skin barrier and stimulate the extracellular matrix components essential for skin firmness. It activates fibronectin and type IV collagen synthesis, improving skin density and firmness particularly in mature or sagging skin.
- 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
- 0.005–0.05% in formulation
- Frequency
- 2x per week (loading), then 1x per week (maintenance)
- Once or twice daily
- 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
- Increases skin firmness and density
- Stimulates fibronectin and collagen IV production
- Strengthens the dermal-epidermal junction
- Reduces skin sagging in mature skin
- Improves skin texture and smoothness
- Supports extracellular matrix integrity
- Side Effects
- Generally very well tolerated
- Injection site reactions
- Mild fatigue at initiation (repair signaling)
- Rare: mild inflammatory response
- +1 more
- Generally well-tolerated
- Rare mild skin irritation in sensitive individuals
- No known systemic effects at cosmetic concentrations
- Stacks With
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