Stonhart Discount Codes — Up to $299 OFF Verified November 2025

Two licensed estheticians founded Stonhart with the intention of providing pros in the aesthetic industry with high-quality products, education, and new ideas. Stonhart set out to launch their first product line more than four years ago. Finding a them lab that could produce adhesive for lash extensions that is both safe and effective was their initial objective. They spent a lot of time looking before they found their ISO-certified, FDA-registered lab with skilled chemists and launched their first product, their well-liked lash extension adhesive. Since then, they've expanded into skincare, brow henna, and lash and brow lifting products through their network of manufacturers, bringing quality to all product categories.

Always make sure your coupon code for Stonhart is still valid by checking its expiration date before you make a purchase. Codes are often time-sensitive, so it's a good idea to verify their validity to avoid any issues at checkout.