4. Refined Avocado Oil

But wait, don’t stop reading just yet because there’s another 100% natural sunscreen your hair might love waaay more than all those synthetic products. It’s name? Avocado oil! Famous for being the best herbal sunscreen there is with strong UV absorption properties that extend to both UVA and UVB rays, this totally natural hair product is something you can mix with other oils (such as Argan or Grapeseed oil) to create your very own natural heat protectant or use alone to make sure your hair receives optimal hydration, nurture and protection in summer.