Hyaluronic Acid (HA) is a naturally occurring polysaccharide found in the human body, particularly in connective tissues, skin, and eyes. It is renowned for its remarkable ability to retain moisture, making it a highly sought-after ingredient in skincare and cosmetic formulations for its hydrating and anti-aging benefits.
INCI Name:
Hyaluronic Acid
CAS Number:
9004-61-9
Chemical Formula:
(C14H21NO11)n
Uses:
- Moisturizing Agent: Known for its exceptional moisture retention properties, HA can hold up to 1000 times its weight in water, providing intense hydration to the skin.
- Anti-Aging: Helps to reduce the appearance of fine lines and wrinkles by plumping the skin.
- Wound Healing: Promotes faster healing of wounds and can be used in medical applications.
- Lubrication: Used in eye drops to provide moisture and lubrication.
- Volume and Elasticity: Enhances skin volume and elasticity, giving a more youthful appearance.
Applications:
- Skin Care Products: Serums, creams, lotions, and masks.
- Hair Care Products: Shampoos, conditioners, and treatments.
- Eye Care: Eye drops for lubrication and moisture.
- Injectable Fillers: Used in aesthetic medicine as dermal fillers.
Usage Guidelines:
- Concentration: Typically used at concentrations between 0.1% and 2% in skincare products.
- Solubility: Soluble in water, forming a gel-like substance.
- pH Range: Effective in formulations with a pH range of 3 to 8.
Formulation Tips:
- Hydration: Ensure HA is fully hydrated in water before incorporating it into the formulation to achieve maximum efficacy.
- Combination with Other Ingredients: Can be combined with other humectants like glycerin and sodium PCA to enhance moisturizing effects.
- Stability: Incorporate HA towards the end of the formulation process to avoid degradation from heat or extreme pH levels.
Additional Information:
- Molecular Weight Variations: Available in various molecular weights (low, medium, high), each providing different benefits. Low molecular weight penetrates deeper for better hydration, while high molecular weight forms a protective film on the skin's surface.
- Appearance: White powder or granules that dissolve in water to form a clear, viscous solution.
- Origin: Can be sourced from animal tissues (e.g., rooster combs) or produced via bacterial fermentation for vegan formulations.
Safety:
- Biocompatibility: Naturally occurring in the body, making it highly biocompatible and non-irritating.
- Hypoallergenic: Generally considered safe for all skin types, including sensitive skin.