Sepiwhite MSH is a cosmetic skin-brightening active commonly used to help reduce the appearance of hyperpigmentation, dark spots, and uneven skin tone. Its INCI name is generally Undecylenoyl Phenylalanine.
Main uses
1. Dark-spot reduction
- Used in formulations targeting post-inflammatory hyperpigmentation, sun spots, and other localized discoloration.
- It is particularly suitable for long-term brightening products.
2. Overall skin brightening
- Helps promote a more even-looking complexion.
- Often incorporated into brightening serums, creams, lotions, and targeted treatments.
3. Tyrosinase/melanogenesis modulation
- Sepiwhite MSH is primarily used to regulate the melanin-production pathway rather than acting simply as a bleaching agent.
- It is associated with modulation of α-MSH (alpha-melanocyte-stimulating hormone) signaling, an important pathway involved in melanogenesis.
4. Post-acne marks
- Can be incorporated into products designed to improve the appearance of post-inflammatory hyperpigmentation (PIH) left after acne or other skin inflammation.
5. Sun-induced pigmentation
- Used in cosmetic formulations aimed at reducing the visible appearance of pigmentation associated with UV exposure. Sunscreen remains essential because Sepiwhite MSH itself is not a UV filter.
6. Combination brightening formulations
Sepiwhite MSH is often combined with other cosmetic brightening ingredients, such as:
- Niacinamide
- Alpha-arbutin
- Kojic acid
- Vitamin C derivatives
- Tranexamic acid
- Licorice-derived ingredients
Typical product applications
| Product type | Typical purpose |
| Brightening serum | Dark spots and uneven tone |
| Facial cream | Daily pigmentation care |
| Spot treatment | Localized discoloration |
| Emulsion/lotion | Whole-face brightening |
| Post-acne treatment | Visible PIH |
| Anti-aging brightening product | Uneven tone associated with photoaging |
| Body-care products | Dark areas and uneven pigmentation |
Formulation considerations
Sepiwhite MSH is generally valued because it can be used as a non-hydroquinone cosmetic brightening active. Commercial formulations should follow the supplier’s recommended concentration, solvent system, pH range, and processing conditions because the appropriate level depends on the specific Sepiwhite MSH grade and delivery system.
Important: Sepiwhite MSH is a cosmetic ingredient, not a substitute for sunscreen or medical treatment of pathological pigmentation. For pigmentation concerns, daily broad-spectrum sunscreen is particularly important.