100% authentic Korean-market formulas

Free US shipping on orders of $100 or more. 100% authentic Korean-market formulas. Ships from our California warehouse, at your door in 3-5 days. Intact Korean batch codes on every unit.

Shipping details
KOREAN PHARMACY

Dr.G Black Collagen 300 Mask 27g X 4ea

Black Collagen 300 Mask is Dr.G's sheet mask, built around Hibiscus Sabdariffa Flower Extract and Soluble Collagen. It is used as a weekly treatment step, after cleansing and before the rest of the routine. This is sourced as the Korean-market formula rather than a US-shelf reformulation.

No reviews yet
$20.00
  • Ships from our California warehouse
  • Duties prepaid
Suited to
Dehydrated skinSensitive skinSkin that has lost bounceDull, uneven tone
Helps with
Shoppers looking for Soluble Collagen in a sheet maskRoutines that want Soluble Collagen and Niacinamide in one stepFilling the sheet mask step with a Korean-market formulaAnyone who wants the Soluble Collagen sheet mask sold on Korean shelves

In stock. Ships from our California warehouse, dispatched within 2 business days

You’re $100.00 away from free US shipping.

  • Duties prepaid
  • 30-day returns
  • Free US shipping on orders of $100 or more
  • Dispatched within 2 business days

Key benefits

  • Soluble Collagen, the protein this sheet mask is built around
  • Niacinamide and Adenosine on the same list, actives
  • Saccharomyces Ferment and Lactobacillus Ferment on the same list, ferments
  • Tocopherol and Biosaccharide Gum-1 further down the same list
  • Malt Extract and Hibiscus Sabdariffa Flower Extract further down the same list
  • Soluble Collagen named twenty-sixth on the manufacturer list printed on this page

Key actives

Soluble Collagenprotein

Soluble Collagen is collagen kept in its intact triple-helix form and dissolved rather than cut up. It sits on the surface as a water-holding film. The name on the box points at it, and it is named twenty-sixth on this sheet mask's own ingredient list.

Niacinamideactive

Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is named fourth on this sheet mask's list, alongside Soluble Collagen.

Adenosineactive

Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated. It is named thirteenth on this sheet mask's list, alongside Soluble Collagen.

Saccharomyces Fermentferment

Saccharomyces Ferment is a brewer's yeast ferment. It supplies amino acids, sugars and B vitamins and is used as a conditioning, hydrating ferment. It is named fourteenth on this sheet mask's list, alongside Soluble Collagen.

Lactobacillus Fermentferment

Lactobacillus Ferment is the liquid left after lactobacillus bacteria have fermented a plant or milk substrate. It carries the small molecules the fermentation produced, including lactic acid and amino acids, and is used for the look of dull, uneven skin. The panel names it fifteenth on this sheet mask's list, beside Soluble Collagen.

How to use

  1. Unfold onto a cleansed face, leave on for fifteen to twenty minutes, then remove and pat any remaining essence into the skin.

1 of 3

Dr.G Black Collagen 300 Mask 27g X 4ea

Payment and security

We accept

How it works

The Black Collagen 300 Mask is a sheet mask, used after toner, in place of your serum step, in the evening. The protein it is built around is Soluble Collagen, named twenty-sixth on its own ingredient list. The same list carries Niacinamide, Adenosine and Saccharomyces Ferment, so the protein is not the only thing on it worth naming. How much of the Soluble Collagen stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. This is the Original Korean Formula, the sheet mask Dr.G sells in Korea, Soluble Collagen and all.

Worth knowing

  • Patch test this sheet mask on a small area and wait a day before using it more widely, especially with Soluble Collagen on the list.
  • Introduce this sheet mask on its own for the first week, so anything your skin does is traceable to the Soluble Collagen rather than to three changes at once.

Reviews

No reviews yet. Tell us how much you love the product!

Write Reviews (opens in a new tab)

We’re on gram!

Creators trying on authentic Korean skincare routines and products from us.

  • Rating a shelf of Dr. Althea products one by one.

    Jasmine Loo · YouTube

  • Two hydrating serums side by side, IUNIK and Dr. Althea.

    Kristin · YouTube

  • A walk through the Dr. Althea serum lineup and who each one suits.

    auraofmahmuda · YouTube

  • A blunt first take on the Dr. Althea range.

    Lexi Chang · YouTube

  • A first look at the viral 345 Relief Cream before buying.

    Shelley Nayak · YouTube

  • A first try of the Dr. Althea serum on camera.

    Hannah Ziad · YouTube

Korean-market original

Black Collagen 300 Mask, Dr.G's sheet mask with Hibiscus Sabdariffa Flower Extract and Soluble Collagen.

Verify your unit when it arrives

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.

On the unit itself

  • The Korean-market barcode, unaltered from the retail package.
  • The manufacturer’s batch code, exactly as the maker printed it.

정품Genuine article, Korean-market stock

What professionals say

What professionals say

What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.

  • Topical collagen is a very large molecule that's too big to absorb into the skin.

    Michelle Henry, MDDermatologist, Cosmopolitan
  • Those bacteria are essential to fight infection, protect against environmental damage, regulate pH levels and keep the skin hydrated and healthy.

    Shilpi Khetarpal, MDDermatologist, Cleveland Clinic
1 more professional perspective
  • Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.

    Ashlyn YankeAesthetician, Cleveland Clinic

Ask an AI assistant about this product

Ask an AI assistant about this product

Opens ChatGPT, Perplexity or Claude in a new tab with the question prefilled. Claude asks you to sign in first.