Alpha-arbutin is a biosynthetic, water-soluble glycosylated derivative of hydroquinone, recognized for its potent skin-brightening properties. It functions by competitively inhibiting tyrosinase, the key enzyme involved in melanin synthesis, thereby reducing hyperpigmentation such as melasma, sunspots, and post-inflammatory discoloration. Compared to its beta counterpart, alpha-arbutin exhibits greater stability and efficacy, making it a preferred choice in cosmetic formulations targeting uneven skin tone.
In skincare applications, alpha-arbutin is often incorporated into serums, creams, and lotions at concentrations up to 2% for facial products and 0.5% for body lotions, as deemed safe by the Scientific Committee on Consumer Safety (SCCS). Its gentle profile makes it suitable for all skin types, including sensitive skin, and it does not increase photosensitivity, allowing for year-round use. Additionally, alpha-arbutin is frequently combined with other actives like hyaluronic acid, niacinamide, and vitamin C to enhance its depigmenting effects and overall skin benefits.
Quick Insights
Ingredient Rating:
GREAT
Type of Ingredient:
Antioxidant, Soother, Barrier Support, Tone Evener and Anti-Aging Agent
Intended Function:
To reduce hyperpigmentation and promote a more even skin tone by inhibiting melanin production.
Common Applications:
Used in facial serums, creams, and lotions targeting dark spots, melasma, and uneven pigmentation.
Target Audience:
Individuals seeking to address hyperpigmentation, including those with sensitive skin or conditions like melasma and age spots.
Also Known As:
4-Hydroxyphenyl-α-D-glucopyranoside, Hydroquinone-α-D-glucopyranoside, Arbutin acid.
Safety Analysis
Alpha-arbutin is considered safe for use in cosmetic products at concentrations up to 2% in face creams and 0.5% in body lotions, as per the SCCS. It has a low likelihood of causing skin irritation and does not increase photosensitivity, making it suitable for daily use across various skin types. However, as with any active ingredient, it’s advisable to conduct patch testing prior to widespread application.
References
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