Bumble and bumble Hairdresser’s Invisible Oil Heat and UV Protective Primer This Bumble and bumble Hairdresser's Invisible Oil Heat and UV Protective Primer ($13-$28) packs UV protection against the sun's rays, and is especially useful in summer months or on already brittle or colour-treated hair. The popular leave-in also detangles and conditions, offering essential moisture with six lightweight oils, too. Image Source: sephora.com Bumble and bumble Hairdresser's Invisible Oil Heat and UV Protective Primer $13 from sephora.com Buy Now