One brightening face serum is the Brighten Up Vitamin C Serum by Ursa Major. It contains a stable form of Vitamin C called Ascorbic Acid Polypeptide that helps brighten and improve the skins appearance, tone, and firmness. The serum is lightweight and provides instant hydration. It is formulated without petrochemicals, sulfates, parabens, synthetic fragrances, or other suspect chemicals.

Another brightening face serum is the Chemist at Play Brightening Face Serum. It contains 3-O-Ethyl Ascorbic Acid, which is a stable form of Vitamin C that helps brighten the skin. It also contains Propanediol, which is a moisturizer and humectant, and Ferulic Acid, which supports a luminous, youthful radiance that targets imperfections for a more uniform looking skin tone.

The Face Shop Whiteseed Brightening Serum is another option. It contains Niacinamide, which is a brightening ingredient, Panthenol, which is soothing, and Hyaluronic acid, which strengthens skin resilience and moisture. The serum also contains TFS exclusive hexylresorcinol, which gives powerful whitening effects that are 1,000 times more effective than vitamin C.

The Vitamin C Brightening Serum by Advanced Clinicals is another option. It contains Ferulic Acid, which supports a luminous, youthful radiance that targets imperfections for a more uniform looking skin tone. It also targets dark spots, uneven tone, and expression lines. The serum is dermatologist and allergy tested.

The Whitelab Brightening Face Serum contains Niacinamide, which is a cell-communicating ingredient, skin brightening, anti-acne, and moisturizer/humectant. It also contains Licorice Glycyrrhiza Glabra Extract, which is soothing and skin brightening, and Allantoin, which is soothing.

Positive aspects of these brightening face serums include:

• They contain ingredients that help brighten the skin and improve its appearance.
• They provide hydration and moisturization to the skin.
• They contain ingredients that support a luminous, youthful radiance and target imperfections for a more uniform looking skin tone.
• They are formulated without petrochemicals, sulfates, parabens, synthetic fragrances, or other suspect chemicals.

Negative aspects of these brightening face serums are not mentioned in the search results.