Keratin Hair & Nails with Biotin, 60 Capsules

Reserveage Beauty Keratin Hair & Nails with Biotin, 60 Capsules received a product quality score of 92/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 7 active ingredients with 30 servings per container. All 3 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Reserveage Beauty, holds a brand trust score of 62/100.

Reserveage Beauty Keratin Hair & Nails with Biotin, 60 Capsules contains 7 active ingredients: Niacin (as niacinamide) (18 mg NE), Vitamin B6 (as pyridoxine) (2 mg), Biotin (300 mcg), Pantothenic Acid (as d-calcium pantothenate) (14 mg), Zinc (as zonc oxide) (15 mg), Copper (as copper sulfate) (1.7 mg), and 1 more. Notable high-dose ingredients include Biotin at 1000% DV, Pantothenic Acid at 280% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Reserveage Beauty Keratin Hair & Nails with Biotin, 60 Capsules has been analyzed for ingredient safety across all its components. All 3 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Reserveage Beauty receives a brand trust score of 62/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2009 and headquartered in Boca Raton, FL, United States, the company offers 28 products in their lineup.

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.