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See the lineBeaver Beard Oil · 5 ingredients · 7 cited studies
The Beaver Beard Oil is differentiated by three actives with published clinical hair-growth evidence: rosemary essential oil, peppermint essential oil, and pumpkin seed oil. To our knowledge, no other beard oil on the market stacks all three of these clinically-supported actives in a single formulation.
Where these ingredients work
Beard growth happens at the follicle: a structure embedded in the dermis with its own blood supply, hormone-sensitive papilla, and bulb of dividing cells. The actives in this formula act on three of those components — circulation, 5-alpha-reductase signaling, and follicular health.
Every active, every citation
Two of the lead actives — rosemary essential oil and pumpkin seed oil — have published randomized controlled trials behind them. The numbers below are from those papers, not from us.
INCI · Rosmarinus Officinalis Leaf Oil
Demonstrated in a randomized controlled trial to be comparable to 2% minoxidil for hair regrowth in androgenetic alopecia. Mechanism includes follicular stimulation and 5-alpha-reductase inhibition — the same enzymatic pathway targeted by finasteride.
Hair count change at 6 months · 100-patient RCT
Panahi et al. 2015 · SKINmed
Rosemary oil produced hair count increases statistically comparable to 2% minoxidil with significantly less scalp itching as a side effect. Numbers are illustrative bar widths of relative outcomes reported in Panahi et al. (2015); see citation below for the published values.
Randomized Comparative Trial · 2015 · 100 patients
Panahi, Y., et al. "Rosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia: a randomized comparative trial." SKINmed, 13(1), 15–21.
Finding: 100 patients, 6-month randomized trial. Rosemary oil produced hair count increases comparable to 2% minoxidil with significantly less scalp itching as a side effect.
Read on PubMed →Mechanism Study · 2013
Murata, K., Noguchi, K., Kondo, M., et al. "Promotion of hair growth by Rosmarinus officinalis leaf extract." Phytotherapy Research, 27(2), 212–217.
Finding: Mechanistic study identifying rosemary's hair-growth-promoting activity via 5-alpha-reductase inhibition (similar pathway to finasteride).
Read on PubMed →INCI · Mentha Piperita Oil
Active component menthol produces vasodilation and a cooling sensation. Documented to promote hair growth and circulation in animal models, with mechanism studies supporting follicular blood-flow enhancement.
Mouse Model · 2014
Oh, J.Y., Park, M.A., & Kim, Y.C. "Peppermint oil promotes hair growth without toxic signs." Toxicological Research, 30(4), 297–304.
Finding: Mouse model comparing 3% peppermint oil vs 3% minoxidil over 4 weeks. Peppermint oil group showed faster hair growth than the minoxidil group. Mechanism: increased follicular vascularization.
Read on PubMed →INCI · Cucurbita Pepo Seed Oil
Demonstrated in a double-blind, placebo-controlled human clinical trial to produce significant hair count increase in men with androgenetic alopecia. Mechanism: 5-alpha-reductase inhibition (same pathway as finasteride).
Hair count increase at 24 weeks · double-blind RCT
Cho et al. 2014 · Evidence-Based Complementary and Alternative Medicine
76 men, 24 weeks, randomized double-blind placebo-controlled. Mean hair count increase in the pumpkin-seed-oil group was 40% versus 10% in the placebo group — a statistically significant difference reported in Cho et al. (2014).
Double-Blind RCT · 2014 · Open Access
Cho, Y.H., Lee, S.Y., Jeong, D.W., et al. "Effect of pumpkin seed oil on hair growth in men with androgenetic alopecia: a randomized, double-blind, placebo-controlled trial." Evidence-Based Complementary and Alternative Medicine, 2014, 549721.
Finding: 76 men, 24 weeks, randomized double-blind placebo-controlled. Pumpkin seed oil group: 40 percent mean hair count increase vs 10 percent in placebo group. Statistically significant.
Read on PubMed →INCI · Argania Spinosa Kernel Oil
Cold-pressed kernel oil from the Moroccan argan tree. Rich in vitamin E and unsaturated fatty acids. Documented skin hydration and elasticity-support findings in human clinical trials.
Clinical Hydration Trial · 2014
Boucetta, K.Q., et al. "Skin hydration in postmenopausal women: argan oil benefit with oral and/or topical use." Przeglad Menopauzalny, 13(5), 280–288.
Finding: 60 women, 60 days. Topical argan oil produced measurable increase in skin hydration and improvement in elasticity parameters.
Read on PubMed →Plant Oils Review · 2018 · Open Access
Lin, T.K., Zhong, L., & Santiago, J.L. "Anti-inflammatory and skin barrier repair effects of topical application of some plant oils." International Journal of Molecular Sciences, 19(1), 70.
Finding: Review of multiple plant oils including argan, documenting skin barrier repair and anti-inflammatory properties.
Read on PubMed →INCI · Simmondsia Chinensis Seed Oil
Technically a liquid wax — not an oil — structurally similar to human sebum. Excellent compatibility with skin and hair. Documented sebum-balancing, anti-inflammatory, and wound healing properties. Non-comedogenic.
Dermatology Review · 2013
Pazyar, N., Yaghoobi, R., Ghassemi, M.R., et al. "Jojoba in dermatology: a succinct review." Giornale Italiano di Dermatologia e Venereologia, 148(6), 687–691.
Finding: Review covering jojoba's use in dermatology. Documents sebum-similar composition, non-comedogenic profile, anti-inflammatory effects, and wound-healing properties.
Read on PubMed →INCI · Tocopherol
In the Beard Oil, vitamin E plays a dual role: it acts as a fat-soluble antioxidant that extends the shelf life of the unsaturated carrier oils, and it supports skin and follicle health via its documented anti-inflammatory and photoprotective mechanisms.
Dermatology Review · 2016 · Open Access
Keen, M.A., & Hassan, I. "Vitamin E in dermatology." Indian Dermatology Online Journal, 7(4), 311–315.
Finding: Comprehensive review documenting Vitamin E's antioxidant mechanism, photoprotective effects, and role in scar healing.
Read on PubMed →