New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareDecapeptide-12 vs Selank

Decapeptide-12 vs Selank

Side-by-side comparison of key properties, dosing, and research.

Skin & Cosmetic
Decapeptide-12
Cognitive Enhancement
Selank
Summary
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.
Selank is a synthetic heptapeptide analog of tuftsin developed in Russia. It is a potent anxiolytic that reduces anxiety and enhances cognitive function without sedation or addiction. It is approved for clinical use in Russia for anxiety disorders.
Half-Life
Not applicable (topical)
Minutes (but effects persist for hours)
Admin Route
Topical
SubQ, Intranasal
Research
Typical Dose
5 ppm (0.0005%) concentration
250–500 mcg
Frequency
Twice daily (AM and PM)
1–3 times daily
Key Benefits
  • 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
  • Reduces anxiety without sedation
  • Enhances memory and learning
  • Improves focus and concentration
  • Stabilizes mood
  • Reduces physiological stress response
  • May enhance motivation
  • No addiction potential or withdrawal
  • Fast-acting — effects within 20–30 minutes
  • Approved clinically in Russia for anxiety disorders
Side Effects
  • Generally very well-tolerated
  • Rare mild irritation or sensitivity in some skin types
  • Results may take several weeks to become visible
  • Mild sedation at higher doses (paradoxical)
  • Fatigue (rare)
  • Irritability during discontinuation (uncommon)
Stacks With