OLAPLEX Nº.7 Bonding Oil 1 fl oz - 450°F Heat Protection

OLAPLEX Nº.7 Bonding Oil is a 1 fl oz styling hair oil with heat protection up to 450°F/232°C. Its compact bottle fits a styling routine built around damp or dry hair, shine, and frizz control.

Size And Formula

The US full-size bottle contains 1 fl oz of oil and is listed at $32.00 by Ulta as of 09/22/2026. The formula includes dimethicone, isohexadecane, coco-caprylate, phenyl trimethicone, sunflower seed oil, vitamin E, and OLAPLEX's bond-building ingredient complex.

The oil is designed for wet, damp, or dry hair. OLAPLEX describes a metered-drop bottle: turn it upside down, tap the base, and apply the dispensed amount to the hair.

Heat Protection And Styling

OLAPLEX lists heat protection up to 450°F/232°C. The same product information describes shine, softness, color vibrancy, reduced flyaways, and frizz control as the main styling aims.

OLAPLEX reports 125% more shine, 72-hour frizz control and humidity resistance, and a 77% reduction in breakage after one use. Those figures come from the brand's comparison with bleached hair without Nº.7 and from a routine that also used Nº.4 shampoo and Nº.5 conditioner.

Price And Category Position

The listed US price is $32.00 for the 1 fl oz size as of 09/22/2026. Ulta also lists a 2 fl oz size, while the $32.00 price applies to the 1 fl oz bottle.

Compared with a conventional finishing hair oil, Nº.7 adds a stated 450°F heat-protection claim alongside shine and frizz-control claims. The formula's silicone ingredients support a smoothing finish, while the small bottle and metered dispensing favor controlled application.

Best Fit For Styling

Nº.7 is suited to color-treated, heat-styled, dry, wavy, curly, and straight hair routines because the instructions permit use on wet, damp, and dry hair. Its main limit is dosage control: applying more oil than the hair needs can change the finish from light smoothing to visible weight.

At $32.00 for 1 fl oz, OLAPLEX Nº.7 sits in the premium hair-oil category. Its clearest use case is a styling routine that needs shine, flyaway control, and heat protection in one product, rather than a basic oil used only for conditioning.