The official CP-1 website identifies Esthetic House Co., Ltd. as the operating company and lists Sung Han Ju as CEO [1].

CP-1 operates as a key hair-care portfolio under Esthetic House, a South Korean beauty company [2]. Public trademark records indicate that Esthetic House Co., Ltd. filed for the CP-1 trademark in the United States in December 2018, with registration granted in July 2019 [3]. This registration encompasses a wide range of cosmetic and hair-care preparations, including shampoos, conditioners, oils, creams, and treatments [3]. As of October 2025, the U.S. trademark registration remained active following the acceptance of a statement of continued use [4].

The corporate address for CP-1 is listed as Seongnae-dong, Gangdong-gu, Seoul, Republic of Korea [1].

The brand name CP-1 stands for “Ceramide Protein No.1,” reflecting its formulation focus on ceramides and proteins as essential components for repairing damaged hair [1]. Unlike many K-beauty brands that prioritize facial skincare or makeup, CP-1 has built its identity specifically around hair condition and texture [1].

The company’s philosophy emphasizes “1:1 Personal Hair Care,” aiming to make professional-level treatment accessible for home use [1]. Rather than marketing products solely as daily cleansing agents, CP-1 presents hair care as a treatment-oriented routine where specific products address distinct hair concerns. Consequently, its categories extend beyond basic shampoo and conditioner to include intensive treatments, protein repair systems, moisturizing therapies, ampoules, oils, scalp exfoliation, and styling products [1]. Major areas highlighted by the brand include Ceramide Treatment, Aquaxyl Complex, Head Spa, and Professional Hair Care [1].

CP-1 maintains a diverse portfolio organized into several functional families rather than relying on a single flagship item.

Protein Repair

The Ceramide Protein line is central to the brand’s positioning for damaged, weak, or rough hair. These products utilize proteins and conditioning agents to improve hair texture and are marketed toward individuals whose hair has been stressed by bleaching, coloring, perming, heat styling, or environmental factors [1].

Moisture Care

The Aquaxyl Complex line focuses on intensive hydration. Described as using fine moisture and protein particles, this range includes shampoos, conditioners, serums, and hair oils designed to nourish dry hair [1][5].

Scalp Care

The Head Spa category addresses scalp health through cleansing and exfoliation. Notable products in this line, such as the Head Spa Scalp Scaler, incorporate ingredients like Himalayan pink salt for deep cleansing [1][5]. This reflects a holistic approach combining hair shaft care with scalp maintenance.

Additional Product Families

• Bright Complex: A family focused on nourishing and conditioning, including the Bright Complex Intense Nourishing Shampoo [6].
• 3 Seconds: A collection emphasizing quick and convenient intensive care, featuring hair-fill-up shampoos, conditioners, and ampoules [1].
• Treatments and Ampoules: Concentrated formulations offering more intensive conditioning than standard washes. International retailers list items such as the Hair Treatment Mask, Premium Silk Ampoule, 3 Seconds Hair Ampoule, Treatment Vinegar, and various hair oils [5][6].

CP-1 formulations frequently feature recurring ingredient groups aligned with their functional claims:

• Ceramides: Central to the brand’s identity and repair claims [1].
• Proteins: Ingredients such as wheat protein, silk protein, keratin, collagen, and elastin are commonly cited in product information for damaged hair lines [5].
• Aquaxyl: The signature component for the moisturizing range [1].
• Botanical Extracts and Oils: Used across various lines for conditioning and nourishment [5].
• Salts: Sea salt and Himalayan pink salt are associated with the scalp-scaling products [1].

CP-1 occupies a distinct niche within the K-beauty sector due to its specialized focus on hair care over general cosmetics.

The brand targets consumers seeking salon-like results at home, particularly those with dry, bleached, colored, chemically treated, or frizzy hair, as well as those with scalp concerns [1]. While it appeals to the broader K-beauty market, international retailers typically classify CP-1 primarily under hair care rather than general beauty [6].

CP-1 products are widely available to consumers in the Philippines through international K-beauty e-commerce platforms. Retailers such as iHerb carry an extensive assortment of the brand for the Philippine market, including the Head Spa Scalp Scaler, Premium Silk Ampoule, Bright Complex shampoo, and various treatments [6]. The official CP-1 website also offers a World Shipping option, supporting direct international e-commerce [1].

According to the official website, the corporate details for CP-1 are as follows:

• Company: Esthetic House Co., Ltd.
• CEO: Sung Han Ju
• Location: Gangdong-gu, Seoul, South Korea
• Business Registration: 212-81-73857
• Customer Service: +82-70-8890-8939 [1]

CP-1 is a registered trademark of Esthetic House Co., Ltd. In the United States, the mark holds Registration Number 5,819,968 (Serial Number 88239023), originally filed on December 21, 2018, and registered on July 30, 2019 [3]. A statement of continued use was accepted on October 22, 2025, confirming the mark’s active status [4].

Terms used in CP-1 branding such as “repair,” “protein,” and “anti-hair-loss” represent product positioning and marketing concepts rather than guaranteed medical or biological treatment effects. The brand’s strongest reputation lies in hair care; consumers seeking comprehensive beauty portfolios including makeup or fragrance may find the selection limited compared to generalist K-beauty brands.

1. CP-1 씨피원 CP1
2. CP-1
3. CP-1 Trademark of ESTHETIC HOUSE CO., LTD. – Registration Number 5819968 – Serial Number 88239023 :: Justia Trademarks
4. CP-1 Trademark (USPTO Serial 88239023) | USPTO Record | TrademarkElite
5. 헤어케어 – CP-1
6. CP-1 K-Beauty