Beard growth serums and oils are sold to men with patchy or slow beards, often with "growth" in the product name. This page reads what a sample of them declare, from the brands' own stores, and sets that against the trials that exist on growing facial hair. It does not rank products.
For peptides on the scalp, see our peptides for men's hair page and the peptides for hair growth hub.
What the bottles declare
Read on 28 October 2026 from each brand's own US store. Where a store published a full ingredient list it is counted; where it named only highlighted ingredients, that is said.
| Product | Store's own description | Full list published? | What it declares |
|---|---|---|---|
| Zeus BeardPLUS Growth Serum | water-based leave-in serum "to help create the appearance of a fuller, thicker-looking beard" | yes, 40 ingredients | rosemary leaf oil 2, peppermint oil 3, caffeine 6, biotin 9, hydrolyzed rice protein 21, collagen 34, apigenin 36, oleanolic acid 37, biotinoyl tripeptide-1 38; phenoxyethanol at 18 |
| The Beard Club Beard Growth Oil | "a conditioning beard oil" that moisturizes and softens | yes, 9 ingredients | castor seed oil first, then sunflower, rice bran, sweet almond and olive oils and four fragrance oils (cedar, juniper, mint, vetiver); no other active |
| The Beard Club Beard Growth Balm | leave-in balm "made with 2x biotin, castor oil, and ashwagandha extract" | not in the store text read | biotin, castor oil, ashwagandha extract (named only) |
| The Beard Club Beard Growth Vitamins | a daily multivitamin "formulated as part of a beard care routine" | not read | an oral supplement, not a topical |
| Beardbrand single-scent beard oils | "helps prevent beard itch, soothe dry skin, and stop beard dandruff" | named oils only | abyssinian, jojoba, castor and babassu oils; no growth claim |
| Honest Amish Classic, Pure and Premium Beard Oils | conditioning oils | yes (7 to 14 oils) | plant oils only |
Three things the labels show.
- No product contains minoxidil. It is the only ingredient with a placebo-controlled beard trial (below), and it is an over-the-counter drug: a product containing it is regulated as a drug, not as a cosmetic.
- The word "growth" does not track the formula. The Beard Club's Beard Growth Oil declares nine plant oils and nothing else, and the store's own description of it is a conditioning oil. Beardbrand sells oils with almost the same ingredients and makes no growth claim at all.
- The one peptide is at the end of the list, and the marketing does not mention it. Zeus's serum declares biotinoyl tripeptide-1, apigenin and oleanolic acid at positions 36 to 38 of 40. That trio is the combination a supplier sells for scalp products under the trade name Procapil. Each sits twenty places after phenoxyethanol, a preservative used at 1 percent or less, so each is present at well under 1 percent. The product copy names caffeine, biotin, collagen and peppermint oil, not the peptide. Our page on biotinoyl tripeptide-1 covers what has been tested on the scalp.
Zeus also states that in "a consumer study of the BeardPLUS system", 71 percent of participants reported less patchiness and 85 percent thicker-looking facial hair after 30 days. The store gives no number of participants, no comparison group and no publication, and a self-assessment of how hair looks is not a hair count.
The beard trials that exist
Minoxidil, placebo-controlled. A PubMed search on 28 October 2026 for records tagged as randomized controlled trials joining minoxidil with beard or facial hair returned 3. Two are beard trials:
- Ingprasert and colleagues, Journal of Dermatology, 2016 — 3 percent minoxidil lotion against placebo for beard enhancement in men, randomized and double-masked, from Mae Fah Luang University Hospital in Bangkok. It was published as a short research letter with no abstract on PubMed, and its full text was not read for this page, so its numbers are not quoted here.
- Wattanawinitchai and colleagues, Journal of Dermatological Treatment, 2026 — 69 transgender men on stable testosterone, 3 percent minoxidil or placebo twice a day for 12 weeks. Beard density rose by 11.16 hairs per square centimetre on minoxidil against 0.08 on placebo, and beard hair diameter by 5.37 against −0.33 micrometres; adverse events were "minimal and comparable between groups". These participants were on testosterone, so the result cannot be read across directly to men with naturally sparse beards.
The third record is a trial in alopecia areata, a different condition.
Minoxidil, without a placebo group. An Italian study (Marinelli and colleagues, 2024) followed 16 transgender men applying minoxidil to the face for 6 months and reported higher facial-hair scores; two case reports, one of identical twin men in which one twin used 5 percent minoxidil on his beard for over a year, describe the same direction. A 2025 meta-analysis in the Journal of Family Medicine and Primary Care counted 19 randomized trials of topical minoxidil for facial hair, including eyebrows, and rated most of them at some or high risk of bias.
Minoxidil's label. The US over-the-counter label read on openFDA (a 5 percent topical solution, label dated 8 October 2025) states the use as regrowing hair "on the top of the scalp". Facial use is off-label, and a 2025 case report described transient vision loss associated with minoxidil use. Whether minoxidil suits a particular person is a question for a doctor, not for a product page.
Everything else: nothing. A search joining beard or facial hair with rosemary, caffeine, biotin or castor oil returned 2 records: a minoxidil case report and a 1988 forensic hair-preparation method. Neither tests beard growth. A search joining beard or facial hair with peptides returned 8, all about forensic proteins, animal biology or tumours. No trial of a peptide, a plant oil or a beard serum on beard growth was found.
What can fairly be said
Beard growth serums and oils, on the evidence of the labels read here, are conditioning products: plant oils, caffeine, biotin and collagen, with one peptide at trace position in one serum. No trial has tested any of them on beard growth, and the word "growth" on a bottle does not mean the formula differs from an oil sold without the claim. The only ingredient with placebo-controlled beard evidence is minoxidil, which these products do not contain and which is approved only for the scalp. Patchy beard growth can also reflect genetics, age or hormones, which a doctor can assess.
Related reading: peptides for hair thickness, peptide shampoo, AnaGain and copper peptides for hair.
Sources
Opened 28 October 2026: brand store product data and pages — zeusbeard.com beardplus-serum (full ingredient list and consumer-study claim); thebeardclub.com beard-growth-oil-vitamins-google (Beard Growth Oil ingredient list), beard-growth-oil-balm-google, Beard Growth Vitamins listing; beardbrand.com beard oil listings; honestamish.com beard oil listings. PubMed searches minoxidil[tiab] AND ("facial hair"[tiab] OR beard[tiab]) (20, every title read; with randomized controlled trial[pt] 3), the same beard terms with rosemary, caffeine, biotin or castor (2) and with peptide*[tiab] (8). Abstracts or records: Ingprasert S et al., J Dermatol 2016;43:968–969, PMID 26893270 (letter, full text not read); Wattanawinitchai K et al., J Dermatolog Treat 2026, PMID 41778417; Marinelli L et al., J Endocrinol Invest 2024, PMID 38644453; Shokravi A, Zargham H, SAGE Open Med Case Rep 2024, PMID 38404498; Almutairi AG et al., J Family Med Prim Care 2025, PMID 41403487; transient vision loss case, BMJ Case Rep 2025, PMID 40398898. openFDA drug label, minoxidil topical solution 5% (effective 8 October 2025). Corrections go to the contact page.