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Does a bond builder like Olaplex or K18 really repair heat damage?
Bond builders like Olaplex and K18 target broken sulphur bonds, but heat damage consists of five different types of damage. Here's what you can repair, what you can't, and how...
Does heat protectant still work on day 2, or do you need to reapply?
Heat protectant stays on your hair until your next wash, but the film wears down from brushing, sleeping and sebum. That's why you apply a fresh thin layer before every...
Does heat protectant need to dry before you start styling?
With a straightener or curling iron, let your heat protectant dry first: water in your hair boils inside the hair fibre and lowers the temperature at which keratin breaks down....
How long does it take for heat damage to grow out of your hair?
Heat damage doesn't heal: damaged hair has to grow out and be cut off. With growth of 1 to 1.25 cm per month, count on roughly one month per centimetre...
Is one pass at 200 degrees worse than three at 150 degrees?
One calm pass on a higher setting is usually less damaging than several passes on a low setting, because heat damage adds up. Here is how to find the lowest...
