Diamond Strength Nail Hardener from Sally Hansen is a high-powered solution designed to end cracking, splitting and peeling while locking in moisture to support nail growth. It is ideal for anyone dealing with fragile nails who wants a dependable base coat that can also be worn alone.
Key benefits
- Virtually ends cracking, splitting & peeling thanks to a strong resin system that reinforces nail structure.
- Locks in moisture to reduce dryness and support healthy nail growth over time.
- Can be worn alone or as a base coat to protect nails or to extend the wear of color applications.
- Fast-drying formula helps you resume daily activities quickly after applying.
- 15–20% more durable appearance when used as a base coat under polish, giving your manicure a lasting finish.
Ingredients and how they help you
- Butyl Acetate and Ethyl Acetate are solvents that allow the coating to spread evenly and form a smooth film on the nail.
- Alcohol Denat. assists in quick drying to reduce waiting time after application.
- Nitrocellulose creates a flexible yet strong film that helps resist cracking as nails flex during daily activity.
- Adipic Acid/Neopentyl Glycol/Trimellitic Anhydride Copolymer provides adhesion and durability, helping the product stay on nails longer.
- Triphenyl Phosphate acts as a plasticizer, improving the film’s flexibility so it won’t chip easily.
- Diamond Powder adds a subtle premium texture and helps reflect light for a polished shine.
- D&C Violet No. 2 provides a color-safe tint within the film for a clean look when used alone.
Usage guidance and who this is for
Apply 1 coat to bare nails. Let dry. Use alone or as a base coat. This product is well-suited for nails that crack, peel or split, and for those who want stronger nails with moisture retention. Store in a cool, dry place and keep out of reach of children. Follow the included product instructions for any additional usage details.
Safety: test on a small area of nail before full application. If irritation occurs, discontinue use and seek advice from a healthcare professional. Keep away from eyes and mouth.
In the pursuit of stronger nails, this product provides a robust base while allowing natural nail growth to continue. It is a cosmetic nail treatment rather than a medication.
Closing note
The Diamond Strength Nail Hardener is a reliable choice for anyone wanting to improve the durability and moisture retention of their nails, with a application that fits into most manicure routines.
Disclaimer: This product is not intended to diagnose, treat, cure, or prevent any disease. Always read and follow the product label. Consult a healthcare professional if you have any health concerns.










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