---
title: "Immune & Gut family"
url: https://humanpeptides.fyi/knowledge-base/families/immune
site: humanpeptides.fyi
last_reviewed: 2026-10-12
---

# Immune & Gut family

This index lists 4 compounds under Immune & Gut, from "Trial-backed" down to "Preclinical". Evidence labels are this index's own and are not endorsements. Each profile attributes its statements to linked sources.

## Members, strongest evidence first

- [Thymosin Alpha-1](https://humanpeptides.fyi/peptides/thymosin-alpha-1): evidence label "Trial-backed"; goals discussed: Immunity, Heart, Liver & Kidney
- [Thymalin](https://humanpeptides.fyi/peptides/thymalin): evidence label "Early human"; goals discussed: Immunity, Longevity & Cellular Aging
- [VIP](https://humanpeptides.fyi/peptides/vip): evidence label "Early human"; goals discussed: Immunity, Libido & Sexual Health
- [KPV](https://humanpeptides.fyi/peptides/kpv): evidence label "Preclinical"; goals discussed: Gut & Digestion, Healing & Recovery, Skin & Glow

Back to the [families index](https://humanpeptides.fyi/knowledge-base/families) or the [knowledge base](https://humanpeptides.fyi/knowledge-base).

> humanpeptides.fyi makes no claims of its own. Every benefit, side effect, nickname and quote reports what a cited source says, with its link. Not medical advice.