Supplement analysis backed by scientific evidence · PT

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Limited evidencePhysical performance

Deer Antler Velvet

Controlled trials in athletes found no gains in aerobic power, strength or hormones beyond training alone. The central marketing claim, that it delivers IGF-1, fails basic pharmacology because IGF-1 is a peptide destroyed by digestion.

What the science says

  • Raises IGF-1, testosterone or growth hormone Limited evidence

    In 46 male and female rowers given 560 mg/day of elk velvet antler for 10 weeks, there was no difference from placebo in any hormone, at rest or after a simulated 2000 m race. IGF-1 is a 70-amino-acid peptide: swallowed or sprayed under the tongue it is degraded rather than absorbed, so the mechanism claimed on labels cannot operate as described.

  • Improves strength and aerobic capacity Limited evidence

    Across 38 active men randomised to deer antler velvet extract, powder or placebo alongside 10 weeks of strength training, all groups improved 6RM strength identically (about 41%), with no change in VO2max, red cell mass, plasma volume or erythropoietin. A single isolated isokinetic knee-extensor result favoured the powder group, which the study authors themselves flagged as a likely type I error.

  • Supports joints and recovery Limited evidence

    Antler velvet contains collagen, chondroitin and glycosaminoglycans, which is the basis for joint claims, but the human trials in arthritis are few, small and inconsistent. Nothing published supports it over far cheaper, better-studied joint ingredients.

Dosage & safety

Studied dosePublished trials used 560 mg/day of elk velvet antler for 10 weeks, or roughly 1.5 g/day of deer antler velvet powder or extract over the same period. Neither dose produced reliable benefit, so there is no evidence-based dose to recommend. Sublingual sprays deliver a small fraction of these amounts.
SafetyNo serious adverse events were reported in the 10-week trials. It is animal tissue containing growth factors and hormones, so it should be avoided by people with hormone-sensitive cancers, and it is not appropriate in pregnancy or breastfeeding. Athletes should treat it as high-risk: products marketed as IGF-1 sources fall foul of WADA rules, since IGF-1 and growth factor analogues are prohibited at all times. Cervid tissue carries a theoretical chronic-wasting-disease concern with no documented human transmission, and sourcing is entirely unregulated, so quality varies widely.

Scientific references

Where to buy

Force Factor, Fundamentals, Deer Antler Velvet (IGF-1), 60 Capsules

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