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Thymosin Alpha-1
SupplementsEffort · MediumModerate

Thymosin Alpha-1

Immune modulation for inflammation-driven skin conditions

925
4.0(2)
1,120 upvotes · 195 downvotes

Thymosin Alpha-1 (Tα1) is a 28-amino-acid peptide secreted by the thymus gland, injected subcutaneously at 1.5mg twice weekly. It is FDA-approved under the name Zadaxin in 35+ countries for hepatitis B, hepatitis C, and as an adjunct in cancer treatment — making it one of the most clinically validated peptides available. In looksmaxxing and biohacking use, it is employed to reduce chronic immune dysregulation that drives inflammatory skin conditions (cystic acne, rosacea, eczema) and to enhance the immune response to viral infections that affect skin health. Well-established safety profile. Prescription in some countries, research chemical in others.

Reviews

What the community says

2 verified voices, averaging 4.0 of 5.

S
Sia
Jun 2, 2026

Cystic acne driven by immune dysregulation cleared after 6 weeks. The most targeted approach I've found for inflammatory skin.

0
K
Kian
Jun 29, 2026

One of the few peptides with real clinical trials behind it. The FDA approval track record in other countries gives me confidence the safety profile is understood.

0