How to use
- Start with clean, slightly damp hair.
- Gently massage the product along the hair.
- Leave it in; do not rinse. Style as usual.
If using a flat iron, wait until the hair is completely dry first. This is the care ampoule, not the L’assio 4Ever straightening system.
Before use
Read your exact package before use. This guide is provided as a convenience and does not replace Nutrapel’s directions or warnings. If anything differs, confirm with the manufacturer using the contact details on the package. Follow any professional-use restriction on your product.
Do not use cracked, broken or leaking ampoules. Avoid contact with broken glass. Follow all opening and safety instructions on the package.
Prepared from Nutrapel’s official product directions. Reviewed October 27, 2026.