Best Supplement for Melasma: What the Evidence Says

The short answer: a few oral supplements have genuine evidence for melasma — Polypodium leucotomos, pycnogenol and vitamin C among them — but they only work as an adjunct to daily sun protection, never instead of it. Melasma is chronic and prone to relapse, so the realistic goal is to fade and control it, not "cure" it. Manage your expectations and your sunscreen first.

Melasma is one of the most stubborn things in skincare, which is exactly why people go searching for the best supplement for melasma. The honest news: supplements can genuinely help — but only as part of a bigger picture, and only if you get the foundation right first. Here's what the research actually supports.

First, the non-negotiable: sun (and heat)

Melasma is driven by UV light, hormones and heat, and it relapses the moment sun protection slips. Every credible study on melasma supplements tested them alongside broad-spectrum sunscreen — because without daily, high-factor SPF, no oral supplement has a chance. If you take one thing from this article, take that.

No supplement out-works the sun. Sunscreen isn't step one for melasma — it's the whole foundation.

Supplements with real evidence

Within that foundation, a handful of oral antioxidants have been studied in randomised trials:

• Polypodium leucotomos (a fern extract) — the best-evidenced option, shown in placebo-controlled trials to improve melasma when taken alongside sunscreen, thanks to its photoprotective and antioxidant action.
• Pycnogenol (French maritime pine bark) — a small clinical study found improvement in melasma pigmentation.
• Vitamin C — an antioxidant that has shown pigment-reducing effects and supports the skin's defence against UV-driven damage.
• Grape seed extract and other polyphenols — antioxidant support studied in the context of hyperpigmentation.

One to be honest about: glutathione, despite its popularity as a "skin whitening" pill, has mixed and controversial evidence and shouldn't be relied on. And tranexamic acid, which you'll see mentioned for melasma, is a prescription medication a doctor may prescribe — not a supplement to self-source.

How a supplement fits a melasma routine

Think of it as three layers: daily broad-spectrum SPF and heat awareness as the base; a dermatologist-guided topical (and patience) for the pigment itself; and oral antioxidants as the reinforcing layer that helps defend the skin from within. A formula that combines the evidence-backed antioxidants — rather than a single one — is the most practical way to add that layer, which is the thinking behind RADIANCE, our supplement for dark spots, melasma and hyperpigmentation.

Explore RADIANCE The supplement for dark spots, melasma & hyperpigmentation →

Frequently asked questions

What is the best supplement for melasma?

Polypodium leucotomos has the strongest evidence, with pycnogenol and vitamin C also supported — but all work only as an adjunct to daily sun protection, not as a standalone treatment.

Can a supplement cure melasma?

No. Melasma is a chronic condition with no universal cure and a strong tendency to relapse; supplements can help fade and control it as part of a routine, but they don't cure it.

Does glutathione work for melasma?

The evidence for oral glutathione is mixed and controversial, so it's not a reliable choice. The antioxidants with better support are Polypodium leucotomos, pycnogenol and vitamin C.

How long do melasma supplements take to work?

Trials generally run around 12 weeks alongside sunscreen, so give any supplement at least three months — and keep your sun protection consistent the entire time.

References

Zhou LL, Baibergenova A. Melasma: systematic review of the systemic treatments. International Journal of Dermatology, 2017.

Babbush KM et al. Treatment of melasma: a review of less commonly used antioxidants. International Journal of Dermatology, 2021.

Goh CL et al. Polypodium Leucotomos Extract in the Treatment of Melasma (pilot study). Journal of Clinical and Aesthetic Dermatology, 2019.