Compound or practice · Supplement

Deer Antler Velvet

An IGF-1 'anabolic' spray whose active hormone is destroyed by digestion — a long-running performance myth.

Overall grade
Grade D
Last revised
1
graded outcome
0
references listed

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

1 at grade D — 1 graded row

What is known

Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.

  • Strength / recoveryEvidence grade D

    Null trials

    Triviallow

What is uncertain

Read off the same rows as above. Nothing here is added that the entry does not itself record.

  • Thin evidence: Strength / recovery (grade D).

The evidence in words

What it is

Deer antler velvet is ground pre-calcified antler, marketed for strength and recovery on the basis of its IGF-1 content.

How it works

The proposed active ingredient is IGF-1, but IGF-1 is a protein degraded by the gut and not absorbed intact from oral/spray products in meaningful amounts.

What the evidence shows

Controlled trials found no meaningful strength or performance benefit, consistent with the fact that oral IGF-1 isn't absorbed. It made headlines mainly as a banned-substance controversy, not for efficacy.

Safety & interactions

Generally tolerated; the concern is anti-doping status (IGF-1) more than toxicity.

Bottom line

The mechanism doesn't survive digestion and the trials are null. A performance myth — skip it.

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Sources

This entry lists no references of its own.

Last revised . A grade is this entry's reading of the evidence, not medical advice.