CAT1 Ionic Hydrating Cleansing Milk 180ml | Cationic Hyaluronic Acid Hydration After Washing · Gentle Cleansing & Makeup Removal Two-in-One · Suitable for Sensitive Skin | Made in Hong Kong

Is your skin tight and dry after washing your face? The problem isn't your skin; it's your cleanser.

CAT1 Ionic Hydrating Cleansing Milk uses the original Cationic Hyaluronic Acid Complex ionic technology, which leverages the principle of electrostatic attraction between positive and negative charges to ensure hyaluronic acid remains on the skin surface after rinsing, continuously providing moisturizing benefits. Combined with the gentle coconut oil-derived surfactant, Sodium Cocoyl Isethionate, it effectively cleanses dirt and light makeup without stripping excessive natural oils, leaving skin soft and non-tight after washing. It truly achieves gentle cleansing while caring for the skin.

🇭🇰 Developed by Hong Kong formulators and manufactured locally in Hong Kong
Developed and Made in Hong Kong.

180ml｜Lasts approximately 3–4 months

✦ What problems does this cleansing milk solve for you?

• Skin feels tight and dry after washing, losing moisture before moisturizing

• Many cleansers are too strong, leaving skin feeling "squeaky clean" and dry

• Looking for a product that can be used morning and night, and can remove sunscreen and light makeup

• Foaming cleansers repeatedly irritate sensitive skin

• Hoping that the cleansing step itself initiates skincare, rather than merely "clearing the skin"

✦ Why does CAT1 leave skin feeling more hydrated after cleansing?

① Cationic Hyaluronic Acid Complex — Moisturizing technology that doesn't wash away after cleansing
Ordinary hyaluronic acid washes away with water, and its moisturizing effect ceases after cleansing. CAT1 employs ionic technology to convert hyaluronic acid into a positively charged cationic form, utilizing the principle of electrostatic attraction with the negatively charged skin surface. This ensures that hyaluronic acid adheres firmly to the skin even after rinsing, continuously providing moisturizing benefits, leaving the skin soft and hydrated rather than tight and dry after washing.

② Sodium Cocoyl Isethionate — The mildest coconut oil-derived cleansing ingredient
The choice of surfactant determines how gentle a cleanser is. CAT1 uses Sodium Cocoyl Isethionate, a mild amino acid-based cleansing ingredient extracted from coconut oil. Its pH value is close to the skin's natural pH, providing sufficient cleansing power with low irritation. It effectively removes dirt and grime without damaging the skin's natural lipid barrier, leaving dry and sensitive skin non-tight after washing.

③ No foam doesn't mean weak cleansing power — electrostatic repulsion technology is the real key
Many people mistakenly believe that no foam equals ineffective cleansing, but the amount of foam is not directly proportional to cleansing ability. Dense foam can sometimes be a false impression created by a large amount of surfactants, and excessive cleansing can harm the skin. CAT1 achieves an optimal balance between gentleness and cleansing power by precisely adjusting the ratio of low-irritation surfactants and effectively removing dirt through electrostatic repulsion. No foam is needed to cleanse effectively.

④ 2-in-1 cleansing and makeup removal, can remove daily sunscreen and light makeup
When CAT1 is used with dry hands on a dry face, its smooth texture effectively dissolves and removes daily light makeup and sunscreen (including ECT1), eliminating the need for an extra makeup removal step, making it suitable for daily commuter skincare routines. Note: For long-wearing or waterproof makeup, it is recommended to use a dedicated makeup remover. For eye makeup, please use a separate eye makeup remover.

⑤ Squalane + Jojoba Oil + Panthenol — Replenishes oil and repairs while cleansing
The formula includes Squalane, Organic Jojoba Seed Oil, and Panthenol (Vitamin B5) to replenish the skin's necessary light oils and repair the skin barrier while cleansing. This leaves the skin feeling silky smooth and soft after washing, making it a safe cleansing ingredient combination for dry and sensitive skin.

✦ Efficacy

• Gentle deep cleansing: Effectively removes oil and dirt without over-cleansing and damaging the lipid barrier

• Continuous hydration after washing: Cationic hyaluronic acid electrostatically adheres, remaining to moisturize after rinsing

• Removes light makeup and sunscreen: Can remove daily light makeup and sunscreen with dry hands on a dry face

• Barrier repair: Panthenol + Squalane + Jojoba Oil replenish oils and repair, leaving skin non-tight after washing

• Improves rough skin texture: Long-term use helps improve dryness and roughness caused by over-cleansing

✦ Texture

Smooth lotion-like, no foam, easy to spread evenly, feels like a silky cream during application. Skin feels instantly soft and hydrated after rinsing, with no residue. Comfortable for both morning and evening use, suitable for all skin types.

✦ Active Ingredients

Cationic Hyaluronic Acid Complex
A complex ionic ingredient comprising Polyquaternium-10, Hydrolyzed Sodium Hyaluronate, and Sodium Hyaluronate. By transforming hyaluronic acid into a positively charged cationic form, it utilizes electrostatic attraction with the negatively charged skin surface, allowing hyaluronic acid to remain attached to the skin even after rinsing, continuously providing moisturizing benefits. This is the core differentiating technology that sets CAT1 apart from ordinary cleansers.

Sodium Cocoyl Isethionate
A mild amino acid-based surfactant derived from coconut oil, with a pH value close to the skin's natural pH (approximately 5–6). It offers sufficient cleansing efficacy with extremely low irritation, causing minimal damage to the skin's natural lipid barrier. It is one of the preferred ingredients for cleansing formulas for sensitive and dry skin.

✦ Ingredient List

Aqua/Water, Cocamidopropyl Betaine, Butylene Glycol, Sodium Cocoyl Isethionate, Cetearyl Alcohol, Squalane, Ethyl Macadamiate, Cetearyl Olivate, Sorbitan Olivate, Ceteareth-20, Glyceryl Stearate, Xanthan Gum, Panthenol, Phenoxyethanol, Caprylyl Glycol, Organic Simmondsia Chinensis (Jojoba) Seed Oil, Glycerin, Hydrolyzed Sodium Hyaluronate, Polyquaternium-10, Sodium Hyaluronate, Ethylhexylglycerin

✦ Suitable for

• All skin types, especially suitable for dry skin, sensitive skin, and individuals whose skin tends to feel tight after washing

• Individuals who want to moisturize while cleansing, saving additional skincare steps

• Users of ECT1 sunscreen who need a daily cleanser that can remove sunscreen

• Individuals accustomed to foaming cleansers but experiencing recurring dryness and sensitivity, and wish to switch to a gentle formula

• Skincare enthusiasts who value ingredient transparency and avoid over-cleansing

✦ Free from Statement

✅ Alcohol-free
✅ Fragrance-free
✅ Paraben-free
✅ MIT (Methylisothiazolinone)-free

✦ How to Use

Basic Cleansing:

1. Apply 1–2 pumps of cleansing milk to dry or slightly damp skin

2. Gently massage onto face in circular motions for about 1 minute

3. Rinse thoroughly with water

Removing Light Makeup / Sunscreen:

1. Use with dry hands on a dry face, apply 2–3 pumps of cleansing milk to the skin

2. Gently massage in circular motions until makeup dissolves

3. Rinse thoroughly with water, and repeat the above steps once to ensure thorough cleansing

⚠️ If you need to remove eye makeup, please use a dedicated eye makeup remover before using CAT1. It is recommended to perform a sensitivity test on the back of the ear or inner forearm before use. Avoid the eye area and broken skin during use.

✦ Formulator Q&A

Q: Does more foam in a cleansing product mean stronger cleansing power?

A: This is one of the most common misconceptions in the skincare world. The amount of foam is not directly proportional to cleansing ability. Dense foam can be created by packaging pump designs or by adding a large amount of surfactants, but overly strong cleansing can strip the skin's natural oils and damage the skin barrier. A high-quality cleansing formula focuses on selecting low-irritation surfactants and effectively removing dirt through electrostatic repulsion, precisely adjusting the formula ratio to achieve a balance of gentle yet effective cleansing. CAT1 is designed with this principle in mind.

Q: Can CAT1 remove makeup?

A: CAT1 can remove daily light makeup and general sunscreens (including chemical sunscreens). For long-wearing or waterproof makeup, it is recommended to use it with other makeup removers. For eye makeup, please use a dedicated eye makeup remover before using CAT1, and avoid the eye area when using CAT1.

Q: What is the difference between cationic hyaluronic acid and regular hyaluronic acid?

A: Regular hyaluronic acid (Sodium Hyaluronate) has weaker adherence to the skin surface and is easily washed away with water, so its moisturizing effect largely disappears after cleansing. The cationic form of hyaluronic acid used in CAT1, through ionic technology, gives hyaluronic acid a positive charge. This utilizes the electrostatic attraction with the skin's naturally negative charge, allowing hyaluronic acid to remain firmly on the skin even after rinsing, continuously providing moisturizing benefits. This is the core technology that makes CAT1 non-tightening after washing.

Q: Is CAT1 suitable for oily skin?

A: Yes, it is suitable. CAT1's cleansing power is sufficient to remove daily oil and dirt without over-cleansing and damaging the lipid barrier. Oily skin will remain soft and not dry after washing, which helps prevent the vicious cycle of the skin over-secreting sebum in response to over-cleansing. It is also suitable for oily sensitive skin.

Q: Can CAT1 be used morning and night?

A: Yes, CAT1 is designed for both morning and evening use. For basic morning cleansing, use 1–2 pumps to clean residual skincare products from overnight. In the evening, if you need to remove sunscreen or light makeup, use 2–3 pumps on dry hands and face to remove it, then repeat once for thorough cleansing. One product can meet all your daily cleansing needs.

✦ Why choose CAT1?

Cleansing is never just about "washing away dirt." For the skin, this is a skincare opportunity—or a chance for damage—that happens twice daily, depending on which cleanser you choose. CAT1 is designed to make cleansing the first step in skincare, rather than the starting point for skin to begin repairing itself.

A truly good cleanser leaves your skin feeling more moisturized after washing.

CAT1 is developed by a team of Hong Kong formulators and manufactured locally in Hong Kong. Every drop of essence embodies a dedication to skincare ingredients and a promise to your skin.
🇭🇰 Proudly Developed & Made in Hong Kong.