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Dr. Haidi's Picks: Olaplex, K18 & the Products Worth the Higher Price
Every one of these costs more than the drugstore version of the same job, and every one earned its place here anyway. This is where Olaplex and K18 sit alongside a handful of skincare picks Dr. Haidi rates as genuinely worth the spend — not because they're the most expensive option available, but because the cheaper alternative doesn't do the same job as well.
Olaplex & K18: bond repair, not just a hair mask
Olaplex N°3 Hair Perfector is the reason "Olaplex" gets searched by name more than almost any other haircare product — it rebuilds the broken bonds inside damaged hair rather than coating the surface the way a regular hair mask does. K18 Leave-In Molecular Repair Hair Mask, also available in a 50ml size, works on a different repair mechanism entirely — a peptide that repairs keratin chains and stays on the hair rather than rinsing out. Between the two, expect a real difference in breakage and elasticity within a few uses, which is exactly why the price doesn't put people off.
Metal Detox: protecting color from what your water is doing to it
L'Oréal Professionnel Metal Detox Mask, in 250ml or the larger 500ml, targets something most hair mask users never think about — metal particles from hard water that build up in colored hair and cause it to fade and dull faster than it should. If your color never looks as fresh two weeks after a salon visit as it did on day one, this is the mask actually built for that problem.
Kérastase Genesis: for hair that's shedding more than it should
Kérastase Genesis Bain Hydra-Fortifiant is the fortifying shampoo Dr. Haidi picked for weakened, shedding hair — a targeted formula rather than a general-purpose shampoo asked to also fix a fallout problem.
Elizavecca CER-100: the collagen treatment with a cult following
Elizavecca CER-100 Collagen Ceramide Coating Protein Treatment pairs collagen with ceramides in one treatment — hydration and structural repair together instead of choosing one over the other.
Skincare picks: sun protection and pigment correction
Beauty of Joseon Sun Relief Rice + Probiotics SPF50+ is the sunscreen most repeatedly reordered on the site, and it's here for a reason — the price gap over a drugstore SPF is small, and the texture difference is what keeps people applying it daily instead of skipping it. For pigmentation specifically, Eucerin Even Pigment Perfector Dual Serum and SKIN1004 Probio-Cica Intensive Ampoule, available in 95ml as well, cover two different approaches — a dermatology-backed dual serum versus a Centella-based barrier treatment.
Frequently asked questions
Is Olaplex or K18 the better bond repair treatment?
They work on different mechanisms — Olaplex rebuilds broken disulfide bonds, K18 uses a peptide to repair the keratin chain itself. Many people use both at different points in their routine rather than choosing one over the other permanently.
Do I need a metal detox mask if my water isn't visibly hard?
Most tap water carries enough metal content to affect colored hair over time, even when it doesn't look or feel unusually hard. If color fades faster than expected, this is worth trying before assuming the dye itself is the problem.
What makes these worth a higher price than the drugstore equivalent?
In each case, the formula is solving a specific, named problem — broken bonds, metal buildup, weakened roots, pigmentation — rather than being a general-purpose version of the category. That's usually where the price difference actually shows up in results.
Want to browse more premium haircare? Shop Treatments & Masks, or see the full Haircare range.
