BHT (Butylated Hydroxytoluene): Antioxidant Function, Safety, and Alternatives

Based on the information provided, BHT (Butylated hydroxytoluene) is primarily used as an antioxidant in cosmetics, not as a preservative.

Here are the key points:

• Function: BHT is a synthetic antioxidant used to prevent oxidation in cosmetic formulas. Oxidation can degrade the quality of other ingredients.
• Prevalence: It is widely used because it is generally less expensive than natural antioxidants or their derivatives, such as Vitamin E or Vitamin C.
• Safety: While there have been concerns about its safety due to its chemical origin (derived from phenol), multiple research studies have indicated that BHT is safe for use.
• Alternatives: Many cosmetic brands are now choosing alternative antioxidants like Vitamin E and Vitamin C. These alternatives not only protect the formula from oxidation but also provide antioxidant benefits to the skin itself, offering a dual advantage despite potentially higher costs.

Therefore, BHT's main role is to protect the product's ingredients from degradation caused by oxidation, ensuring the product maintains its quality over time.