Search & Compare Supplements - by Bioavailability
We grade nutrient forms to reveal true absorption — not just milligrams.
MaryRuth’s Liquid Morning Multivitamin + Hair Growth is a liquid vitamin complex specifically formulated to improve hair and skin health. Its key feature is the patented Lustriva® complex (160 mg), which contains highly soluble Magnesium Biotinate (a form of biotin that's 40× more soluble than standard biotin) combined with arginine silicate, promising enhanced hair growth and skin improvement. ✨ However, the formula contains extremely high doses of biotin and chromium, while providing only minimal amounts of zinc, MSM, and amino acids—making these ingredients practically symbolic. The cost per serving (~$2.18) is roughly double that of typical liquid multivitamins, justified primarily for those with noticeable hair issues. 💰
Key Ingredients
| Ingredient | Amount | Bioavailability |
|---|---|---|
| Vitamin A | 1,010 mcg | Medium |
| Vitamin C | 90 mg | High |
| Vitamin D | 20 mcg (800 IU) | High |
One Daily Men’s Health is a wallet-conscious men’s multivitamin that delivers full Daily Values for core vitamins and minerals plus lycopene in a single gluten-free, non-GMO tablet, avoiding yeast and artificial colors or sweeteners. To hit that low price point, it leans on inexpensive inorganic salts—calcium carbonate, magnesium oxide, zinc oxide and copper oxide—forms repeatedly shown to absorb 20–70 % less efficiently than their citrate, glycinate or chelated counterparts, so roughly half the formula sits in only medium-to-low bioavailability tiers.
Key Ingredients
| Ingredient | Amount | Bioavailability |
|---|---|---|
| Vitamin C | 99 mg | High |
| Vitamin D | 25 mcg (1,000 IU) | High |
| Vitamin E | 15 mg | Medium |
EVE Superior Women’s Multi blends high-potency vitamins, Albion® minerals and women-specific botanicals—cranberry, alpha-lipoic acid, CoQ10, dong quai, chasteberry, wild yam, soy isoflavones, plus superfruits like pomegranate, acai and mangosteen—into three tablets that deliver comprehensive energy, bone, antioxidant and hormone support while supplying 100 % DV of gentle Ferrochel® iron.
Key Ingredients
| Ingredient | Amount | Bioavailability |
|---|---|---|
| Vitamin A | 3,000 mcg | Medium |
| Vitamin C | 300 mg | High |
| Vitamin D | 25 mcg (1,000 IU) | Medium |
Basic Nutrients 2/Day is a clinician-trusted multivitamin that compresses a full spectrum of bioactive vitamins and highly absorbable minerals into just two capsules, supporting heart, brain, bone, immune and skin health. Third-party certified for label accuracy and formulated without gluten, dairy or soy, it removes the complexity of daily nutrition by delivering balanced, well-absorbed nutrients in a simple, allergen-friendly format.
Key Ingredients
| Ingredient | Amount | Bioavailability |
|---|---|---|
| Vitamin A | 1.05 mg | High |
| Vitamin C | 250 mg | High |
| Vitamin D | 50 mcg | High |
Two-Per-Day is a premium multivitamin designed to meet daily nutritional needs with advanced formulation techniques tailored for health-conscious individuals. It simplifies the process of ensuring you get all essential vitamins and minerals, allowing users to focus on their health while the product manages the complexity of nutrient balance.
Key Ingredients
| Ingredient | Amount | Bioavailability |
|---|---|---|
| Vitamin A | 1500 mcg^ | Upper Medium |
| Vitamin C | 470 mg | High |
| Vitamin D | 50 mcg | High |
ADAM Superior Men’s Multi condenses high-potency vitamins and Albion® chelated minerals with men-focused actives—saw palmetto, lycopene, alpha-lipoic acid, CoQ10, resveratrol and grape-seed extract—into a single daily tablet that targets energy, cardiovascular and prostate support while avoiding excess fillers.
Key Ingredients
| Ingredient | Amount | Bioavailability |
|---|---|---|
| Vitamin A | 1,500 mcg | Medium |
| Vitamin C | 125 mg | High |
| Vitamin D | 12.5 mcg (500 IU) | Medium |