Olaplex No.7 Bonding Oil - 30ml For all hair types, especially for those using heat tools daily. Olaplex No.7 Bonding Oil is a highly-concentrated, weightless reparative styling oil. N°.7 dramatically increases shine, softness, and color vibrancy while minimizing flyaways and frizz. Key benefits: Repairs damaged and compromised hair Strengthens and protects hair structure Restores healthy appearance and texture Free of DEA, Aldehydes and Formaldehyde Use Just a few drops restores hair appearance and texture. Can be used daily on wet and dry hair, or before styling with heat.