I found information on five different vitamin C brightening creams. Here are the product details, positive and negative aspects, and ingredients or materials for each:

1. Lanbena Vitamin C Brightening Cream:

• Ingredients: Water, Glycerin, Hippophae Rhamnoides Oil, Vaccinium Macrocarpon Seed Oil, and Pure Vitamin C (ascorbic acid).
• Positive aspects: Contains pure vitamin C, which is an antioxidant, collagen booster, and skin brightener.
• Negative aspects: Pure vitamin C is unstable and can be a challenge for the cosmetics industry.
• Other information: The cream contains stable derivatives of vitamin C that can be absorbed into the skin and converted to pure vitamin C.

2. Advanced Clinicals Vitamin C Cream:

• Ingredients: Water, Aminopropyl Ascorbyl Phosphate, Tetrahexyldecyl Ascorbate, Ascorbic Acid, and other ingredients.
• Positive aspects: Contains three derivatives of vitamin C that provide antioxidant protection, increase collagen synthesis, and have a skin brightening effect.
• Negative aspects: One of the derivatives, THDA, is not well-proven.
• Other information: The cream is designed for all skin types and is dermatologist tested.

3. NatureWell Vitamin C Brightening Moisture Cream:

• Ingredients: Vitamin C, Coconut Oil, and other ingredients.
• Positive aspects: Contains vitamin C for enhanced skin tone and texture, and lasting hydration.
• Negative aspects: None found.
• Other information: The cream is non-greasy and contains no parabens, dyes, gluten, artificial colors, or flavors.

4. Sunday Riley C.E.O. Afterglow Brightening Vitamin C Gel Cream:

• Ingredients: THD Ascorbate (a highly targeted form of vitamin C), Ergothioneine, Sodium Hyaluronate, Lutein, Allantoin, and other ingredients.
• Positive aspects: Contains a highly targeted form of vitamin C that is powerful, stable, and clinically proven to brighten the appearance of the skin, provide antioxidant support, and fight the look of premature aging caused by UV-B exposure.
• Negative aspects: None found.
• Other information: The cream is sulfate-free, paraben-free, gluten-free, soy-free, phthalate-free, fragrance-free, and vegan.

5. The INKEY List Vitamin C Brightening Cream:

• Ingredients: Pure L-Ascorbic Acid 30%.
• Positive aspects: Contains pure vitamin C, which brightens skin.
• Negative aspects: None found.
• Other information: The cream is cruelty-free.

Overall, these creams contain different ingredients and have different positive and negative aspects. It is important to choose a cream that suits your skin type and addresses your specific skin concerns.