Golden Rose Black Diamond Hardener for Thin, Weak, & Fragile Nails

Sold by GRCosmetics

Up to 38% Off

Product Details


If you're tired of your nails always chipping and breaking, if they bend with the slightest pressure then you need Golden Rose’s Nail Expert Black Diamond Nail Hardener! Our formula contains double patented ingredients of micro diamond particles and a hardening agent. After one use, your thin, weak nails will be instantly reinforced with a hard, protective, glossy shield. Black Diamond Nail Hardener is quick drying, too! It prevents chipping, breaking, and splitting after 4 weeks of regular use. ** For best results, use for a minimum of 4 weeks. 

How to use:
  • Shake gently.
  • As a base coat, apply one coat on clean, dry nails.  Let it dry completely before application of nail lacquer. 
  • For extra protection, apply two coats on bare nails.
  • Regularly use two coats once a week for the best hardening results. 
DBP, toluene, and formaldehyde free. Not tested on animals. 11 mL (0.37 fl. oz) size bottle.

The Fine Print


  • This item is sold through the Groupon Store GRCosmetics, operated by Alta Sales Inc.
  • The merchant is solely responsible to purchasers for the fulfillment, delivery, care, quality, and pricing information of the advertised goods and services.
  • This product is new.
  • Product eligible for free returns within 30 days.
  • Offer is not eligible for promo codes, but is eligible for Groupon Bucks.
  • Shipping and handling charges for the order will be Free.
  • U.S. shipments only.
  • Orders are typically delivered in 5-10 business days.
Offer is not eligible for our promo codes or other discounts.

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