It's called invisible oil for a reason

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Bumble and Bumble Hairdresser's Invisible Oil
Credit: via Sephora

My hair is thin, but I have a lot of it. That means it's easily weighed down and can end up looking like a mop on my head if I so much think about using a moisture-rich shampoo. So, you can imagine my hesitation when someone suggests I try an oil, lotion, or—dare I say—co-washing. That is, until Bumble and bumble Hairdresser's Invisible Oil landed on my desk.

After just the first use it became such a fixture in my daily beauty routine that applying it is now second nature, kind of like swiping on deodorant or brushing my teeth. I smooth it over the ends of my wet hair if I'm letting my hair air dry or I dab it on my fingertips and comb out my waves after I've used my curling iron. Somehow it just gives me an automatic good hair day. It protects against heat and UV damage, tames frizz, and even helps my hair hold curl—seriously, I don't know how.

It also seems to work for thicker hair too. My mom has some of the most enviable hair I've ever seen (unfortunately, I missed the genetic jackpot on that one), it's thick with a nice texture that enables her to get a good 3 or 4 days out of each blow out. I passed on my Invisible Oil to her recently and she ended up applying it to her hair before blow-drying. The result was body, movement, and absolutely no frizz.

Watch: What You Can Learn From 8 Women Who Embrace Gray Hair

Bumble and Bumble's magic potion in a bottle is available in two sizes: .85 oz. and 3.4 oz. The larger size runs $40, but it will last you. I can speak from experience: You're never going to want to go without this stuff again.