KAL Ultra Biotin 10000mcg DropIns - Liquid Biotin Drops for Hair
Amazon.comPosted 4 months ago
Our verdict
KAL Ultra Biotin 10000mcg DropIns - Liquid Biotin Drops for Hair works out to $0.20 per serving of biotin (vitamin b7), at 10000mcg per serving in liquid form. That puts it around the median of the 91 biotin (vitamin b7) products we can price per dose, where the typical serving costs $0.12, a Value Index of 0.6 where the median product is 1.0. One container lasts 59 days at the label dose of 1 serving a day, about $5.89 a month. We could not verify a third-party certification for KAL in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.
Questions about this product
- How much does one serving of KAL Ultra Biotin 10000mcg DropIns - Liquid Biotin Drops for Hair cost?
- $0.20 per serving, which is 10000mcg of biotin (vitamin b7) in liquid form, against a typical $0.12 across the 91 biotin (vitamin b7) products we can price per dose, a Value Index of 0.6 where the median product is 1.0. Worked out from the current retail price as of 2026-11-13, not the sticker price.
- How long does one container of KAL Ultra Biotin 10000mcg DropIns - Liquid Biotin Drops for Hair last?
- 59 days at the label dose of 1 serving a day, which is about $5.89 a month.
- Is KAL third-party tested?
- We could not verify a certification for KAL in the USP, NSF or Informed-Sport public registries. We do not count a "lab tested" claim printed on a label as third-party testing, and an uncertified brand is not automatically worse.
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The silence is deafening
Lead with cost-per-dose, not vibes.