Melatonik is a night serum-in-oil that ISDIN formulates with melatonin, bakuchiol and vitamin C. The product is positioned around overnight antioxidant support, radiance and elasticity. This analysis uses official formula information and public evidence; BES3 has not conducted a wear test.

BES3 verdict

Melatonik may suit normal-to-dry skin seeking a nourishing one-step antioxidant night product. The oil-like finish may feel excessive on someone who prefers weightless layers. It is not the most direct choice for a user specifically seeking a retinoid, because bakuchiol is not vitamin A and should not be presented as chemically equivalent to retinol or retinal.

What the ingredients contribute

Topical melatonin is used for antioxidant positioning in skincare. Evidence is smaller than the product language may imply, and topical use should not be confused with taking melatonin as a sleep aid.

Bakuchiol has some clinical evidence for improving visible photoaging outcomes and may be better tolerated than retinol in certain comparisons. That does not make every bakuchiol formula identical or guarantee a retinoid-level result.

Vitamin C supports the antioxidant story, but the official front-facing page does not make every stability detail obvious. The complete packaging and formula determine how the vitamin C component performs.

How to use it

Apply at night after cleansing and before or instead of moisturizer, depending on dryness. ISDIN advises shaking the product to combine its phases; follow current package directions. Begin every other night if you are reactive or using other actives.

Avoid stacking it immediately with several exfoliating or retinoid products. If the aim is a simple routine, let Melatonik be the treatment-and-emollient step. Continue broad-spectrum sunscreen every morning.

Melatonik or Retinal Advanced?

Choose Melatonik for a serum-in-oil feel and antioxidant-focused routine. Choose Retinal Advanced when retinaldehyde is the intentional treatment active and you are prepared to introduce a retinoid gradually.

PRACTICAL NEXT STEP

Separate brand information from the decision

Brand material can explain a product range, but it should not make the decision by itself. Bring the claimed benefit back to the format, directions, price, your routine and the evidence shown alongside it.

Use this article to guide: night serum, dullness, dryness.

  1. Check the exact product and directions rather than relying on a range-level claim.
  2. Decide what role the product would replace or add to your existing routine.
  3. Compare official information with independent sources and your own tolerance.

Before making a purchase or adding another step, decide what this change would replace. A smaller, clearer test is easier to evaluate than several new products used at once.

Revisit the decision after a few ordinary uses. Keep what is genuinely useful, simplify what is not, and let comfort and practicality carry more weight than a trend or a single swatch.

Keep the limit clear: A brand guide is educational and does not verify individual results, pricing or suitability for a medical concern.

EXPLORE THE CONTEXT

Take the next useful route rather than treating one article as the end of the question.

OFFICIAL BRAND WEBSITE

Continue your research at ISDIN

See current availability, complete product details and the latest usage guidance.

Explore Melatonik at ISDIN

KEEP READING

  1. INGREDIENT BRIEFINGCan Melatonin Work in Topical Skin Care?
  2. BRAND FOCUS · PRODUCT GUIDERetinal Advanced Ingredient and Routine Guide
  3. INGREDIENT BRIEFINGVitamin C in Skincare: Forms, Stability and Routine Placement

Sources

  1. ISDIN U.S. - Melatonik
  2. PubMed Central - Bakuchiol and retinol comparative study

Last reviewed May 8, 2026. This article is educational and does not replace medical advice.