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Retailer

Amazon

Online marketplace selling OTC supplements and skincare from many brands and third-party sellers.

Amazon lists 20 compounds on DiscoverMedica, including Berberine, Collagen peptides and Melatonin.

Listed here
20 compounds
Statuses
Prescription · No prescription
Checked
October 7, 2026
Visit Amazon
A close-up mix of unbranded softgels, capsules and tablets on a dark marble stand beside a bowl of white capsules.

What does Amazon offer?

  1. BerberineBerberine (multiple brands)
    No prescription
    see site
  2. Collagen peptidesCollagen peptides (multiple brands)
    No prescription
    see site
  3. MelatoninMelatonin (multiple brands)
    No prescription
    see site
  4. Magnesium glycinateMagnesium glycinate (multiple brands)
    No prescription
    see site
  5. GlycineGlycine (multiple brands)
    No prescription
    see site
  6. L-theanineL-theanine (multiple brands)
    No prescription
    see site
  7. Omega-3 fatty acidsOmega-3 fish oil (multiple brands)
    No prescription
    see site
  8. GHK-CuCopper peptide (GHK-Cu) skincare (multiple brands)
    No prescription
    see site
  9. Creatine monohydrateCreatine monohydrate (multiple brands)
    No prescription
    see site
  10. Vitamin DVitamin D3 (multiple brands)
    No prescription
    see site
  11. ProbioticsProbiotics (multiple brands)
    No prescription
    see site
  12. L-glutamineL-glutamine (multiple brands)
    No prescription
    see site
  13. PsylliumPsyllium fiber (multiple brands)
    No prescription
    see site
  14. RetinolRetinol skincare (multiple brands)
    No prescription
    see site
  15. AshwagandhaAshwagandha (multiple brands)
    No prescription
    see site
  16. Magnesium citrateMagnesium citrate (multiple brands)
    No prescription
    see site
  17. PrebioticsPrebiotic fiber (multiple brands)
    No prescription
    see site
  18. Vitamin B12Vitamin B12 (multiple brands)
    No prescription
    see site
  19. IronIron supplements (multiple brands)
    No prescription
    see site
  20. MinoxidilMinoxidil topical (OTC) (multiple brands)
    Prescription
    see site

† Prices as listed by the provider when we checked; they change. Checked October 7, 2026.

At a glance

  • Free shipping on eligible orders of $35 or more, or with a Prime membership
  • Prime membership with member-only deals
  • Separate Amazon Pharmacy service for prescriptions
  • Online Returns & Replacements center
  • Many listings are sold and shipped by third-party sellers

Checked October 7, 2026. Sources: Amazon homepage, Amazon customer Q&A on free shipping over $35