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Guides — by goal

Peptides by goal, graded by evidence

Pick a goal to see the compounds studied for it, ranked by the strength of the evidence — strongest first. Grades reflect the evidence, not the marketing.

Metabolic
10 compounds · top grade A
Tissue repair
4 compounds · top grade B
GH & endocrine
10 compounds · top grade A
Skin & aesthetic
7 compounds · top grade B
Longevity & cellular
1 compound · top grade C
Neuro & cognitive
3 compounds · top grade B
Reproductive
2 compounds · top grade B
Immune & thymic
2 compounds · top grade B
Gut
2 compounds · top grade B
Anti-inflammatory
2 compounds · top grade C
Sleep & circadian
3 compounds · top grade B
Mitochondrial
1 compound · top grade C
Hair & topical
2 compounds · top grade B
Bone & connective
3 compounds · top grade B
Vallydia

A neutral reference and a lawful-lane shop. Registered in Spain. Information for those who seek it — never promotion.

Region — United States
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This site provides neutral scientific reference and sells only products lawful in your region. Nothing here is medical advice, a recommendation, or an offer to supply unapproved medicines. No dosing or administration is published for research compounds. Cosmetic peptides per Regulation (EC) 1223/2009. Unapproved injectable peptides are neither sold nor advertised in the EU (Directive 2001/83/EC, Title VIII). © 2026 Vallydia SL — Registered in Spain.

Guides — peptides by goal, graded by evidence · Vallydia