Peptide ScheduleThymosin Alpha 1 vs KPV
Side-by-side comparison of dosage, benefits, and side effects.
Thymosin Alpha 1 (Tα1) is an immune-modulating peptide naturally produced by the thymus gland. It's the master regulator of immune function, enhancing T-cell production and maturation, boosting natural killer cell activity, and modulating dendritic cells. FDA orphan drug status for hepatitis B. Approved in over 30 countries for hepatitis and as an immune adjuvant. It balances the immune system rather than just boosting it.
View full guide →KPV is a naturally occurring anti-inflammatory tripeptide (Lysine-Proline-Valine) derived from the C-terminal end of alpha-melanocyte stimulating hormone (α-MSH). It powerfully reduces inflammation by inhibiting NF-κB and inflammatory cytokines. It's particularly effective for gut inflammation — IBS, colitis, and leaky gut — and can be taken both by injection and orally (oral capsules deliver directly to the gut lining).
View full guide →At a Glance
| Attribute | Thymosin Alpha 1 | KPV |
|---|---|---|
| Category | Immune | Immune |
| Half-Life | ~2 hours | ~30 min plasma (functional anti-inflammatory activity persists 4-6 hours) |
| Route | Subcutaneous | Subcutaneous or Oral |
| Vial Sizes | 5mg, 10mg | 5mg |
| Beginner Dose | 750mcg 2x/week | 200mcg Daily |
| Moderate Dose | 1500mcg 2x/week | 500mcg Daily |
| Aggressive Dose | 1500mcg Daily | 1000mcg Daily |
Key Differences
- Thymosin Alpha 1 enhances adaptive immunity by activating T-cells and dendritic cells; KPV is an anti-inflammatory tripeptide.
- Thymosin Alpha 1 is a 28-amino acid peptide with immune-boosting effects; KPV is just 3 amino acids with potent anti-inflammatory action.
- Thymosin Alpha 1 is dosed 2-3x per week; KPV can be dosed daily.
- KPV has unique gut-healing properties and can be taken orally; Thymosin Alpha 1 is injection-only.
When to Choose Thymosin Alpha 1
- Boosting immune function is the primary goal
- You're dealing with chronic infections or immune deficiency
- T-cell activation and adaptive immunity enhancement is needed
- Cancer support or viral illness recovery
When to Choose KPV
- Reducing chronic inflammation is the priority
- Gut inflammation or IBD/IBS support is needed
- You prefer a simpler, smaller peptide
- You want oral dosing options (gut-targeted)
Can You Stack Thymosin Alpha 1 + KPV?
Thymosin Alpha 1 + KPV is the immune support stack. TA1 boosts adaptive immunity while KPV handles inflammation — addressing both sides of immune modulation.