The Science of Brightening

Cysteamine is one of the only antioxidants the body produces on its own. DermaQuest harnesses it without hydroquinone to fade discoloration at the source and restore even, radiant tone.

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What is Cysteamine?

Cysteamine is a naturally occurring antioxidant produced by every cell in the body. In skincare, it's prized for its ability to help regulate melanin production at the source — targeting dark spots, sun damage, and melasma without bleaching or resurfacing the skin.

DermaQuest's MelaQuest formulas use micro-encapsulated cysteamine, engineered to release gradually as it penetrates the skin. The result is a brightening effect that's more consistent, better tolerated, and built for daily, long-term use.

Powerful visible results

73%

Saw visibly more even tone by week 8

3.5x

Lower inflammatory potential compared with hydroquinone

81%

Noted reduced appearance of dark spots at week 12

Formulated with intention

Three principles guide every MelaQuest formula, from the serum to the eye cream.

Deep, gradual release

Micro-encapsulation lets cysteamine penetrate further and release slowly, improving comfort and extending its brightening effect between applications.

No hydroquinone

Every MelaQuest formula brightens without hydroquinone, offering a gentler path to even tone that's suited to daily, ongoing use.

Antioxidant defense

As one of the body's own antioxidants, cysteamine helps defend against the oxidative stress that accelerates visible aging and uneven tone.

What consistent use looks like on the skin

Cysteamine works gradually, most visible changes build over weeks of regular application.

Targets stubborn discoloration
BENEFIT #1

Targets stubborn discoloration

Helps interrupt excess melanin production at the source, addressing dark spots, sun damage, and post-inflammatory hyperpigmentation.

Softens the look of melasma
BENEFIT #2

Softens the look of melasma

A recognized option for stabilizing and treating melasma and related pigmentation disorders, with a gentler profile than many alternatives.

Protects against oxidative stress
BENEFIT #3

Protects against oxidative stress

Defends skin cells from environmental damage that contributes to premature aging and uneven tone over time.

Unifies overall skin tone
BENEFIT #4

Unifies overall skin tone

With regular use, helps reduce blotchiness and patchiness, gradually restoring a more even, radiant complexion.

Interrupt the process before it settles in.

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