Round Lab 1025 Dokdo Cleanser Review: The Low-pH Cleanser Worth Knowing

Round Lab is a Korean brand that built its reputation around Dokdo water — mineral-rich water sourced from volcanic rock near the Dokdo islands in the East Sea. The 1025 Dokdo Cleanser is the brand's bestseller and one of the most recommended low-pH cleansers in the Korean skincare community.

Here's what makes it stand out.

What Is a Low-pH Cleanser and Why Does It Matter?

Healthy skin has a pH between 4.5 and 5.5. Most conventional cleansers, particularly Western soap-based formulas, have a pH of 8-10. Washing with a high-pH cleanser disrupts the acid mantle — the protective film of sebum and sweat on the skin's surface — and can cause dryness, irritation, and increased sensitivity.

Low-pH cleansers, formulated to match the skin's natural acidity, cleanse effectively without disrupting the barrier. The Round Lab 1025 Dokdo Cleanser has a pH of approximately 5.5-6.0, placing it in the ideal range.

Key Ingredients

Dokdo Mineral Water (1025m depth) The signature ingredient. Water sourced from deep volcanic rock formations carries dissolved minerals including calcium, magnesium, and silica. These minerals support skin comfort and help maintain hydration balance after cleansing.

Glycerin A humectant that draws moisture from the environment into the skin. Its presence in a cleanser helps prevent the tight, dry feeling that often follows cleansing.

Sodium Cocoyl Glutamate A gentle amino acid-derived surfactant that cleanses without stripping. Common in K-Beauty formulas for sensitive and combination skin.

Allantoin A soothing agent that calms irritation and supports cell turnover. Beneficial for post-cleansing comfort.

Texture and Performance

The Dokdo Cleanser comes as a gel-to-foam formula. It starts with a lightweight gel texture, then lathers into a fine foam with water. The lather is moderate — enough to feel clean, not so dense that it strips.

After rinsing, skin feels clean but not tight. There's no squeaky feeling, which is a reliable indicator that the pH is appropriate and the barrier hasn't been disrupted.

For makeup removal, the Dokdo Cleanser works well for light coverage but requires a dedicated cleansing oil or balm first if you wear heavy or waterproof makeup. It's designed as a second cleanse step in the Korean double cleansing method.

Who Is This Cleanser For?

Best for:

• Oily and combination skin types
• Acne-prone skin sensitive to harsh cleansers
• Anyone breaking out from their current cleanser
• Beginners to Korean skincare looking for a straightforward second cleanse

May not be ideal for:

• Very dry skin that benefits from cream or oil cleansers
• Those who prefer a creamier texture

Comparison: Round Lab vs. Other Low-pH Cleansers

The most frequently compared products:

COSRX Low pH Good Morning Gel Cleanser Similar pH range, also popular. The COSRX formula contains tea tree oil (which some find irritating) and has a lower glycerin content. Round Lab's formula tends to feel more hydrating post-rinse.

Beauty of Joseon Green Plum Refreshing Cleanser A newer entry, fruit enzyme-based, with a similar pH target. Slightly more brightening focus, less mineral-forward.

Round Lab holds its own in this comparison primarily due to the mineral water base and the absence of fragrance.

How to Use

1. Wet your face with lukewarm water
2. Dispense a small amount (coin-sized)
3. Lather between palms, then apply to face in circular motions
4. Rinse thoroughly with cool or lukewarm water
5. Pat dry with a clean towel

Use morning and evening, or as the second step in a double cleanse.

Wholesale Notes for Retailers

Round Lab has strong brand recognition among skincare enthusiasts aged 20-35, particularly in North America, Australia, and Southeast Asia. The 1025 Dokdo Cleanser has stable demand and works well as an entry-level K-Beauty product for customers new to Korean skincare routines.

Explore Round Lab products available for wholesale through knok's platform.