Anti-Aging Formulation for Youthful Skin

Based on your goal of achieving youthful skin and reducing slight wrinkles, and considering the ingredients you've listed along with the suggestions from the previous reply, here's a breakdown of the ingredients and recommended usage rates:

Anti-Aging Ingredients

To target wrinkles and promote a youthful appearance, the following ingredients are beneficial:

• Resveratrol: You proposed 5%. Products like Micromul™ Resveratrol are typically used at 0.5-5%. Your proposed percentage is within this range.
• EGCG: You proposed 1%. Products like Hi-EGCG™ (Green Tea Extract) are typically used at 1-5%. Your proposed percentage is within this range.
• Apple Stem Cell: You proposed 2%. Apple Stem Cell Extract (AppleCell™ Powder) is typically used at 0.5-5%, with the manufacturer recommending 3% and allowing up to 5%. Your proposed percentage is within this range.
• Isoflavone: You were unsure about the percentage. Isoflaqua™ (Water Soluble Soy Isoflavones) is typically used at 0.1-1.0%.
• Matrixyl 3000: Suggested in the previous reply. Pal-GHK, Pal-GQPR (eq Matrixyl 3000) is typically used at 3-5%, with 3% being the recommended rate.
• Argireline: Suggested in the previous reply. Acetyl Hexapeptide-8 (eq Argireline) is typically used at 3-10%.

These ingredients work together to stimulate collagen, provide antioxidant protection, and help reduce the appearance of wrinkles.

Whitening Ingredients

While your primary goal is anti-aging, you also included whitening ingredients:

• Licorice: You proposed 5%. Licorice Extract (Licochalcone A 1%, Water-Soluble) is typically used at 0.5-3%, with 0.5-1.0% recommended for reducing oiliness, acne, inflammation, irritation, and allergies. 3% is used for allergic rash (Eczema). Your proposed 5% is higher than the typical recommended range for general use.
• Lemon Peel Bioferment: You were unsure about the percentage. Lemon Peel Bioferment (Lemon Skin™) is typically used at 0.5-5%, with 2-3% being the recommended rate.

These ingredients can help with skin brightening and reducing pigmentation.

Moisturizing Ingredients

You included several moisturizing ingredients. The previous reply suggested potentially reducing these if your skin is not dry.

• Betaglucan: You proposed 5%. Beta Glucan 70% (Oat Extract, Water-Soluble) is typically used at 0.1-1.0%, with 1% recommended. Your proposed 5% is higher than the recommended range.
• Natural Moisturizing Amino Acids: You proposed 5%. Natural Moisturizing Amino Acids (e.q. Prodew 400) are typically used at 0.5-5%, with 3-5% for skin. Your proposed percentage is within this range.
• Sodium Lactate Plus: You proposed 5%. Sodium Lactate Plus is typically used at 1.0-5.0%. Your proposed percentage is within this range.
• Urea: You proposed 5%. Urea (High Purity, Cosmetics, Powder) is typically used at 3-20% for moisturizing (5% if very dry skin). Your proposed percentage is within this range for moisturizing.

These ingredients help to hydrate the skin. If your skin is not dry, you might consider adjusting their percentages based on your formulation's overall feel and desired hydration level.

When formulating, always refer to the specific product's recommended usage rate and guidelines for mixing and stability.