Liquid Biotin & Collagen 60
- Collagen
- Liquid
- Biotin, Collagen
- 2 fl oz
- More reviewed than 68%
A combined liquid biotin and collagen drop supplement for hair, nail and skin support, most useful to people already sold on the liquid delivery format.
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How it ranks among the 98 collagen we track
4.5★ across 3,668 Amazon ratings, Bayesian-smoothed toward the category average.
3,668 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 98 collagen we track - how the scorecard works · full collagen data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A raspberry-flavored liquid drop supplement combining 60,000 mcg of biotin and collagen in a 2 fl oz bottle, formulated for people who prefer liquid drops over pills for hair, nail and skin support.
Liquid drops let you adjust dose more precisely than a capsule since drops can be measured individually, and they skip the swallowing step some biotin pills require. The 60,000 mcg figure covers the combined biotin and collagen blend rather than biotin alone, so read it as a total potency marker. Gluten-free labeling is the only diet claim attached.
- 60,000 mcg biotin and collagen liquid drops
- Natural raspberry flavor
- 2 fluid ounce bottle
- Gluten free
Who it's for
Fits people wanting a liquid biotin and collagen supplement dosed by dropper, particularly those who find capsules hard to swallow. Not the choice for anyone who wants collagen-only or biotin-only, since this combines both into one drop.
Strengths and trade-offs
Drawn from this product's published specifications.
- Liquid dropper format for flexible dosing
- Raspberry flavor rather than unflavored
- Combines biotin and collagen in one product
- Small 2 fl oz bottle limits total servings
- Combined formula, not adjustable biotin and collagen separately
Performance notes
The drops mix into water or a beverage and are absorbed through normal digestion like any oral supplement, with raspberry flavor masking the taste of the biotin and collagen base. A 2 fl oz bottle is a small volume, so daily serving size determines how many days it lasts.
Specifications
| Brand | Liquid |
|---|---|
| Model | NH-BTNDRS2 |
| Form | Liquid |
| Supplement Type | Biotin, Collagen |
| Count | 2 fl oz |
| Flavor | Natural Raspberry |
| Benefits | Hair Growth |
| Diet | Gluten Free |
How it compares
This product against the closest alternatives we track in collagen.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Liquid Biotin & Collagen 60This product | 4.5 / 5 | 3,668 | 4.3 / 5 |
| Sports Research Collagen PeptidesSports | 4.6 / 5 | 129,448 | 4.6 / 5 |
| Vital Vitamins Multi Collagen Peptides Capsules for Women & MenVital | 4.6 / 5 | 52,236 | 4.6 / 5 |
| Great Lakes Wellness Collagen Peptides PowderGreat | 4.6 / 5 | 37,839 | 4.6 / 5 |
| NativePath Collagen Peptides ProteinNativePath | 4.6 / 5 | 13,800 | 4.6 / 5 |
Similar collagen from other brands
Questions about the Liquid NH-BTNDRS2
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What does model NH-BTNDRS2 combine in one bottle?
It combines liquid biotin and collagen in a single raspberry-flavored drop formula.
Is this Liquid Biotin & Collagen product gluten free?
Yes, it is labeled gluten free.
How much liquid comes in one bottle?
The bottle holds 2 fluid ounces.