Immune Signaling Research

Thymosin Alpha-1

Not FDA approvedRecovery & tissue repairImmune & gut
7.3/10

BioHarmony verdict

Strong recommend

Read full report

What is Thymosin Alpha-1?

FDA identifies immunogenicity and peptide-impurity concerns for compounded thymosin alpha-1 and says available safety information is inadequate.

Dosing as published

No approved-label or study protocol is recorded for Thymosin Alpha-1 yet.

More reported protocols

Members

Members can compare additional reported doses, schedules, and preparation notes.

Educator coverage (4)

Attributed viewpoints, separate from primary research.

Trust & sourcing

US approvalNot FDA approved
CompoundingWithdrawn from Category 2 nomination; eligibility is not established
Last checked2026-07-13
Next review2026-10-11

Primary sources

  1. 7.5/10BPC-157Strong recommendRecoveryNot FDA approvedBPC-157 is a 15-amino-acid gastric peptide fragment with consistent preclinical repair data, including a 2025 sports-medicine systematic review of 36 studies with 35…
  2. 7.5/10TB-500 (Thymosin Beta-4 Fragment)Strong recommendRecoveryNot FDA approvedTB-500 is a synthetic LKKTETQ fragment marketed for soft-tissue repair, but most human evidence is on full-length topical thymosin beta-4: Sosne 2023 reported corneal…
  3. 7.4/10GHK-Cu (Copper Peptide)Strong recommendRecoveryNot FDA approvedGHK-Cu is a human copper-binding tripeptide with the best evidence for topical skin repair and wound healing, including Mulder 1994 diabetic ulcer data showing 98.5%…
  4. 7.2/10Thymosin Beta-4 (Full)Strong recommendRecoveryInvestigational

Free guide

The Ultimate Peptides Guide

Spot stronger candidates, weak evidence, and seller red flags before you buy.

Free. Includes evidence and regulatory updates. Unsubscribe anytime.