[MARY&MAY] Premium Idebenone Blackberry Complex Essence Mask (20 sheets)
MARY&MAY

[MARY&MAY] Premium Idebenone Blackberry Complex Essence Mask (20 sheets)

21.28

Size
Free shipping over $80 · Flat rate $9.80
Authentic from Seoul · 5–8 days delivery
Secured by PayPal · No account needed

These daily essence masks are infused with idebenone and blackberry complex to provide antioxidant, brightening, and moisturizing benefits. The mask sheets are designed to adhere well to the skin, helping to improve elasticity and soothe dry or dull skin.


About the Brand

MARY&MAY is a Korean clean beauty brand dedicated to providing honest, transparent, and effective skincare solutions. Their philosophy centers on the 'less is more' approach, focusing on high concentrations of well-researched active ingredients while avoiding unnecessary additives, parabens, and artificial fragrances. The brand is committed to ingredient transparency, clearly disclosing the percentages of key actives to help consumers make informed choices, and emphasizes sustainability through eco-conscious packaging. Popular products include their 6 Peptide Complex Serum, Tranexamic Acid + Glutathione Eye Cream, and various vegan-certified sheet masks, all designed to target specific skin concerns with minimal irritation. Positioned as an affordable yet high-quality clean beauty brand, MARY&MAY is highly regarded for its dermatologically tested formulas and its mission to guide users on a safe and effective skincare journey.

Full active list and clinical composition.

Information

This list of ingredients represents all options or variants of this product. Actual ingredients in a given product option may vary from this list. Ingredients subject to change at manufacturer's discretion.

For the most complete and up-to-date list of ingredients, please refer to product packaging.

Korean beauty products are labelled in Korean.
For reference: 제조 Manufacture · 까지 Until · 만료 Expiry

Note

Patch test recommended before first use. For full product information, see our Disclaimer.

Step

Step 4 — Activate

What it does

Boosts cell turnover and delivers concentrated active ingredients.

How to use

Warm between palms, press gently onto skin.

Pro tip

The essence step is what separates a K-beauty routine from everything else.

Note

Patch test recommended before first use. For full product information, see our Disclaimer.

Every KCOS order is hand-picked and shipped from Seoul. Flat rate $9.80 worldwide. Free over $80.

Dispatch

1–3 business days from Seoul, South Korea. Tracking provided by email once dispatched.

Delivery

5–8 business days worldwide. Allow extra days during 11.11, Black Friday and Lunar New Year.

Customs

Import VAT and customs fees may apply on arrival, set by your local authorities. We'll always do our best to help if anything unexpected comes up — write to hello@kcosonline.com.

Authenticity

Every product is sourced directly in Seoul by our team. We don't work with third-party warehouses or unverified resellers.

Payment

Checkout is secured by PayPal. You can pay with any debit or credit card — Visa, Mastercard, Amex — without needing a PayPal account. Every order is covered by PayPal Buyer Protection.

Returns

Due to the nature of cosmetics shipped internationally, we accept returns only for damaged or defective items. Reach out within 14 days of delivery at hello@kcosonline.com.

Suggested Protocol

KCOS — Lab Series