
Best for daily nail maintenance and people with chronic hangnails
- Cold-pressed oil formulation
- Paraben and cruelty-free
- Natural humectant properties
Head to head · Nail Care
Ravvy scores Biotin Ultimate Strength Nail Strengthener at 89.67 and Advanced Hard as Nails™, Clear Nail Strengthener at 92.74. Advanced Hard as Nails™, Clear Nail Strengthener takes the overall pick, best for budget conscious shoppers with soft or peeling nails.

$4
A must-buy for anyone on a budget who needs immediate structural support for weak nails and can tolerate a slightly thick formula as it nears the bottom of the bottle.
Ravvy pick

Sally Hansen
$3
Buy this if you need an affordable, proven solution for brittle nails and do not mind a traditional chemical scent.
| Factor | Biotin Ultimate Strength Nail Strengthener | Advanced Hard as Nails™, Clear Nail Strengthener |
|---|---|---|
| Strength | 92 | – |
| Gloss Level | 91 | – |
| Drying Speed | 95 | 93 |
| Value for Money | 98 | 99 |
| Ingredient Safety | 89 | – |
| Longevity | – | 87 |
| Finish Quality | – | 90 |
| Strengthening Power | – | 89 |
What owners praise
What to know first
Skip it if users who want a matte finish or those with sensitive skin who may react to rapid-dry solvents
What owners praise
What to know first
Skip it if users looking for a 10 free or organic botanical formula
| Spec | Biotin Ultimate Strength Nail Strengthener | Advanced Hard as Nails™, Clear Nail Strengthener |
|---|---|---|
| UPC | 839186088737 | 074170450835 |
| ASIN | B01DG10XA6 | B0046MLZLG |
| GTIN | 839186088737 | 074170450835 |
| Size | 0.55 Fl Oz (Pack of 1) | – |
| Item Form | Liquid | Gel |
| Specialty | Cruelty Free, Formaldehyde Free, Fragrance Free, Non-Toxic, Strengthener | – |
| Brand Name | Nail-Aid | Sally Hansen |
| Manufacturer | ANISE COSMETICS, LLC | Coty Beauty |
| Model Number | 08873 | 30003408001 |
| Liquid Volume | 0.55 fluid ounces | 0.45 fluid ounces |
| Number of Items | 1 | 1 |
| Customer Reviews | 4.3 4.3 out of 5 stars (15,089) 4.3 out of 5 stars | 4.6 4.6 out of 5 stars (27,323) 4.6 out of 5 stars |

Best for daily nail maintenance and people with chronic hangnails

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Mineral Fusion
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