Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| LL-37 (Cathelicidin) | Tesamorelin | |
|---|---|---|
| Category | Peptides | Peptides |
| Standard Dose | Research indicates 50-100 mcg daily via subcutaneous injection for immune support. | Research indicates 2 mg administered once daily via subcutaneous injection (FDA-approved dose for HIV lipodystrophy). |
| Timing | Morning administration preferred for immune support. Topical application directly to wound sites. | Morning administration on empty stomach. Consistent daily timing recommended. |
| Cycle Duration | 4-8 week cycles. Short-term use preferred due to limited long-term safety data. | 26+ weeks in clinical trials. Long-term use is common; effects are not sustained after discontinuation. |
| Evidence Level | animal_plus_anecdotal | Strong (FDA-approved indication), Moderate (longevity) |
LL-37 is a 37-residue amphipathic helical antimicrobial peptide, the only human cathelicidin, that kills bacteria by forming tetrameric channels that perforate cytoplasmic membranes. Beyond direct antimicrobial activity, it modulates innate immunity through formyl-peptide receptor 2 (FPR2), induces chemotaxis of neutrophils and monocytes, upregulates CXCR4 and IL-8, and neutralizes bacterial endotoxins (LPS). It also promotes wound healing through keratinocyte migration and angiogenesis.
Research indicates 50-100 mcg daily via subcutaneous injection for immune support.
Morning administration preferred for immune support. Topical application directly to wound sites.
4-8 week cycles. Short-term use preferred due to limited long-term safety data.
Tesamorelin is an FDA-approved synthetic 44-amino acid GHRH analog with a trans-3-hexenoic acid modification at the N-terminal tyrosine that confers resistance to DPP-IV degradation. It binds GHRH receptors on anterior pituitary somatotrophs, stimulating endogenous GH production and secretion while maintaining pulsatile release patterns. Tesamorelin selectively reduces visceral adipose tissue (15-20% reduction in trials) while preserving subcutaneous fat, and markedly increases plasma GH and IGF-1 levels with once-daily dosing.
Research indicates 2 mg administered once daily via subcutaneous injection (FDA-approved dose for HIV lipodystrophy).
Morning administration on empty stomach. Consistent daily timing recommended.
26+ weeks in clinical trials. Long-term use is common; effects are not sustained after discontinuation.
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