Search & Compare Supplements - by Bioavailability

Life Extension, Children's Formula, Life Extension Mix, Natural Berry, 120 Chewable Tablets

(4.12)

Children’s Formula Life Extension Mix is a smart, chewable multivitamin for kids 4–8 (suitable as a base for 9–13), combining clean taste with science-driven forms. It centers on highly absorbable chelated minerals (zinc, selenium, molybdenum), safe vitamin A as β-carotene, and a generous B-complex — no added sugar. Designed to simplify daily nutrition while you manage food quality, it flags common gaps (vitamin D, calcium/K, omega-3s) so parents can top up what matters, not guess.

Nutrafol Women's Hair Growth Supplements, Ages 18-44, 120 Capsules

(3.68)

Nutrafol Women’s Hair Growth, 120 Capsules — a drug-free, multi-targeting hair supplement for women 18–44 that addresses stress, DHT, and micro-inflammation via two proprietary blends (Synergen Complex^® + Nutrafol^® Blend). The formula includes 2 chelated minerals out of 3 - Zinc (Amino Acid Chelate) and Selenium (L-Selenomethionine) - plus Iodine from organic kelp to help cover common nutrient gaps. Take 4 capsules with a meal daily. * ✳️ Sub-ingredient doses are proprietary.

MaryRuth's, Liquid Morning Multivitamin + Hair Growth, Peach Mango, 15.22 fl oz (450 ml)

(4.11)

MaryRuth’s Liquid Morning Multivitamin + Hair Growth is a liquid multivitamin for adults 18+ that combines broad vitamin coverage with 160 mg of Lustriva^®, a branded complex built around arginine silicate and magnesium biotinate. The formula provides 10,000 mcg (10 mg) of biotin - not 20 mg - along with 1,000 mcg of chromium picolinate, while zinc is limited to 1 mg and MSM, BCAAs, betaine and hesperidin are present in relatively small amounts. Lustriva has randomized clinical evidence for improvements in measured hair-thickness parameters in women with self-reported thinning hair, but this evidence applies to the branded ingredient, not to an independent clinical trial of the finished MaryRuth’s product. The main practical considerations are the very high biotin dose, possible interference with some laboratory tests, the unusually high chromium dose, and the fact that the 450 ml bottle provides only 15 servings.

Nature's Way, Alive! Men's Ultra Multivitamin, 60 Tablets

(3.16)

Nature’s Way Alive! Men's Ultra Multivitamin ⚠️ is marketed as an "ultra-complex" multivitamin designed specifically for men, but realistically blends basic vitamins and minerals with numerous marketing-focused ingredient blends in negligible doses. Almost all proprietary blends have very low bioavailability 📉, thus failing to deliver claimed health benefits. Essential minerals for men's health, such as zinc, selenium, and folate, are presented in inexpensive and less effective forms. The supplement is safe but ineffective, making it overpriced compared to basic alternatives. ❌

NOW Foods, Eve, Superior Women's Multi, 90 Tablets

(4.10)

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.

NOW Foods, ADAM, Superior Men's Multi, 60 Tablets

(4.13)

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.