L-Aspartic Acid has been used in many cosmetics products due to its skin benefits:

1. Skin Brightening:

   - L-Aspartic Acid has been shown to inhibit the activity of tyrosinase, an enzyme involved in the production of melanin, which can lead to a more even skin tone and reduced appearance of hyperpigmentation. (Ohguchi et al., 2010)
   - A study found that a topical formulation containing L-Aspartic Acid effectively reduced melanin production and improved skin lightening in participants with melasma. (Shao et al., 2019)

2. Antioxidant Properties:

   - L-Aspartic Acid has been demonstrated to have potent antioxidant activity, which can help protect the skin from oxidative stress and environmental stressors. (Huang et al., 2018)
   - Research has shown that L-Aspartic Acid can scavenge free radicals and reduce lipid peroxidation, contributing to its potential anti-aging benefits. (Lee et al., 2006)

3. Skin Hydration and Barrier Function:

   - L-Aspartic Acid has been found to enhance skin hydration by increasing the production of natural moisturizing factors, such as hyaluronic acid. (Campos et al., 2016)
   - Topical application of L-Aspartic Acid has been shown to improve skin barrier function and reduce transepidermal water loss, leading to improved skin moisture levels. (Campos et al., 2018)

4. Anti-Inflammatory Properties:

   - Studies have suggested that L-Aspartic Acid possesses anti-inflammatory properties, which can be beneficial for managing skin conditions associated with inflammation, such as acne. (Tundis et al., 2019)
   - Topical L-Aspartic Acid has been found to reduce the production of inflammatory mediators and cytokines in in vitro and in vivo models. (Hu et al., 2019)

Usage: For any product

Mixing method: Mix in water

Rate of use: 0.1-1%

Product characteristics: White powder, light color

Solubility: Can dissolve in water (Please check the dissolution level)

INCI Name : L-Aspartic Acid