Bumble and bumble Hairdresser's Invisible Oil Heat/UV Protective Primer is the brand's #1 best-selling multitasking leave-in conditioner, formulated to transform dry, damaged, or frizzy hair. Each 8.5 fl oz bottle is infused with the signature Featherlight 6-Oil Blend — a lightweight combination of Coconut Oil, Argan Oil, Grape Seed Oil, Macadamia Nut Oil, Sweet Almond Oil, and Safflower Seed Oil — delivering deep hydration, frizz reduction, and softness without heavy residue. This Costco 2-pack offers exceptional value on a salon-quality product that retails for $34 per bottle at the brand's own website.

This multitasking formula serves as a heat protectant, UV shield, leave-in conditioner, and styling primer all in one step. It protects hair from heat tools up to 450°F/232°C, guards against UV-induced color fading for up to 16 washes, and delivers 86% more hydration versus untreated hair. In consumer testing, 97% of users reported shinier, less frizzy hair, and frizz reduction of 50% was sustained all day even in extreme humidity. The formula also contains Sodium Hyaluronate for additional moisture retention and UV filters to shield against sun damage.

Suitable for all hair patterns — straight, wavy, curly, and coily — and all hair diameters from fine to thick. Ideal for untreated, color-treated, or heat-, chemical-, or physically-damaged hair. The product is color-safe, cruelty-free, and formulated without parabens, phthalates, mineral oil, or formaldehyde. Winner of the Allure Best of Beauty Award 2023. To use on damp hair, spray from mid-length to ends, rake through, and style as desired. Can also be applied to dry hair to refresh and restyle between washes.