Alpha-Arbutinand Beta-Arbutin are two common whitening ingredients. They have some differences in structure and properties, as follows:
Structure:
The chemical name of α-arbutin is 4-hydroxybenzaldehyde-D-glucoside, which is formed by connecting benzaldehyde and glucose molecules through the aldehyde group and the hydroxyl group. The chemical name of β-arbutin is β-D-glucoside ether benzaldehyde, which is formed from glucose and benzaldehyde molecules through the connection of glucose and aldehyde groups.
Optical isomers:
Alpha arbutin: Alpha arbutin belongs to the D-isomer, that is, it has a right-handed nature.
β-Arbutin belongs to the D-isomer or non-optically active form.
Whitening effect:
Alpha Arbutin: Alpha Arbutin has a strong whitening effect, can inhibit the activity of tyrosinase, reduce the production of melanin, thereby reducing pigmentation and evening skin tone. Beta arbutin: Beta arbutin also has a certain whitening effect, but compared to alpha arbutin, its whitening effect is weaker.
Stability:
Alpha Arbutin:
Alpha arbutin has good stability in aqueous and oily matrices and is not easily affected by light, heat and pH value. Compared with α-arbutin, β-arbutin is more prone to decomposition and failure under certain conditions.
Overall, there are differences between α-arbutin and β-arbutin in terms of structure, optical isomers, whitening effect and stability. Alpha arbutin has a strong whitening effect and good stability, while beta arbutin has a relatively weak whitening effect and poor stability. The exact ingredients used depend on the needs and desired effects of the product.
Solubility:
Alpha Arbutin: Alpha Arbutin has high solubility and can be dissolved in solvents such as water and ethanol. The solubility of beta arbutin is relatively low, slightly worse than alpha arbutin.
Safety:
Alpha arbutin is considered to be a safer whitening ingredient, less irritating to the skin and suitable for people with different skin types. Beta arbutin is also relatively safe, but in some cases it may cause skin irritation or allergic reactions, especially when used at high concentrations or on sensitive skin.
In cosmetics and skin care products, alpha and beta arbutin are often clearly labeled as ingredients in the formula. Therefore, you can determine which ingredients are used in a product by looking at the product’s ingredient list or asking the brand or manufacturer.
It should be noted that whether it is alpha arbutin or beta arbutin, its safety and effectiveness depend on the specific product formula and method of use. When choosing products to use, it is best to choose products that suit your skin type and needs.
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Post time: Feb-19-2024
