PrometheusGeneral

Supplements for skin & connective tissue and Biotin (B7)

Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.

Goal guide

Supplements for skin & connective tissue

13 compounds relevant to skin & connective tissue, ranked by overall evidence grade.

Grade B13 graded outcomesrevised Jul 10, 2026

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

Compound or practice

Biotin (B7)

The hair-and-nails vitamin that only helps if you're deficient — and wrecks common lab tests at high doses.

Grade C2 graded outcomesrevised Jul 10, 2026

A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.

Swap the two

Graded in both

Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.

No outcome has the same name in both entries. They may still overlap under different wording — read the two lists below.

Graded only in Supplements for skin & connective tissue

  • Niacin (B3) Unclear effectEvidence grade B
  • Collagen Peptides Unclear effectEvidence grade B
  • Gotu Kola Unclear effectEvidence grade C
  • DIM (Diindolylmethane) Unclear effectEvidence grade C
  • Evening Primrose Oil (GLA) Unclear effectEvidence grade C
  • Biotin (B7) Unclear effectEvidence grade C
  • Silicon Unclear effectEvidence grade C
  • Astaxanthin Unclear effectEvidence grade C
  • Hyaluronic Acid (Oral) Unclear effectEvidence grade C
  • Aloe Vera Unclear effectEvidence grade C
  • Pycnogenol (Pine Bark) Unclear effectEvidence grade C
  • Sea Buckthorn Unclear effectEvidence grade C
  • DMAE Unclear effectEvidence grade D

Graded only in Biotin (B7)

  • Hair/nails (non-deficient) Trivial effectEvidence grade D
  • Deficiency-related hair loss Moderate effectEvidence grade B

What each entry says about the other

  • Supplements for skin & connective tissue’s entry · Goes with: Grade C

Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.