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The 7 Day Hair Treatment That Helps Regulate Oil Production

BY JENNY JUNG

How Dermal Therapy’s sebum control range balances oily scalps and refreshes hair without the buildup.

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14 APR - 2025

7 days to ditch the grease—this oil-fighting trio is your scalp’s new low-maintenance bestie.

Managing oily hair can be a frustrating cycle of constant washing, dry shampoo overload and never quite getting that fresh-feeling scalp to last. That’s why I was intrigued when Dermal Therapy launched their Sebum Control range, designed as a 7-day treatment to help regulate oil production at the scalp. I decided to put it to the test, incorporating the Sebum Control Serum, Sebum Control Shampoo and Dry Shampoo into my routine for a full week to see if it really made a difference.

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Dermal Therapy, Sebum Control Serum, $21.99 NZD.

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Dermal Therapy, Sebum Control Shampoo, $21.99 NZD.

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7 Days Later

The Sebum Control Serum is the hero of this routine. This leave-on formula is specifically designed to balance oil production at the root, with users seeing results well within a week. I found that it absorbed quickly, felt lightweight and didn’t leave any greasy residue—something I was skeptical of due to its leave-in nature. Usually, I’d wash my hair every 2 nights but during my test period, I was able to get away with 3 nights unwashed hair without feeling heavy or greasy. One of my friends shared a similar experience, noting that after using the treatment for a week, her scalp felt significantly more balanced with her hair staying fresher for longer.

The Sebum Control Shampoo is an essential part of the routine, cleansing the scalp effectively without leaving it feeling stripped or tight. Unlike many clarifying shampoos that can be too harsh, this one provides a deep cleanse while maintaining essential moisture. From the first use, I noticed that the shampoo worked to balance oil levels without over-drying, and the formula felt surprisingly soothing—a key factor given that excess oil can often be triggered by scalp inflammation.

For an instant refresh, the Sebum Control Dry Shampoo is a game-changer. Unlike many other dry shampoos, this one doesn’t leave a white cast, actually absorbs oil rather than just masking it and has a fresh peach scent without being overpowering. It’s a great option for those in-between wash days, helping extend the results of the treatment without buildup. I personally love using dry shampoo just before bed to let it work its magic over night and waking up to fresh hair!

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Dermal Therapy, Sebum Control Dry Shampoo, $17.99 NZD.

After testing the full 7-day routine, I can confidently say this range delivers on its promise. The serum helps reset oil production over time, while the dry shampoo works as the perfect complement for immediate oil control. If you struggle with greasy roots and want to break the cycle of overwashing, Dermal Therapy’s Sebum Control system is definitely worth trying.

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