If your diet is well-balanced, supplements may offer marginal benefit. However, many men have nutrient deficiencies without knowing it — and correcting these can make a meaningful difference in beard density and growth rate. Supplements work best when they address a genuine deficiency.
Biotin (2,500–5,000 mcg/day): The most popular beard supplement. Supports keratin production. Most effective in those who are deficient.
Vitamin D (1,000–4,000 IU/day): Many men are deficient, especially those in northern climates. Critical for follicle health.
Zinc (15–30 mg/day): Supports testosterone metabolism and follicle health. Don't exceed 40mg daily without medical guidance.
Ashwagandha: An adaptogen that may support healthy testosterone levels and reduce cortisol, both beneficial for beard growth.
Collagen: Provides amino acids that support hair structure and skin health under the beard.
Saw Palmetto: May help reduce DHT (dihydrotestosterone), which can be helpful for those experiencing beard thinning.
Magnesium: Supports hundreds of body processes including protein synthesis. Many people are deficient.
Get bloodwork done before investing in supplements. A simple panel can reveal deficiencies in vitamin D, iron, zinc, and B12 — the most common culprits behind slow or poor beard growth.
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