★What is the safe addition ratio of Ectoin Powder in cosmetic end products?
The safe addition ratio of Ectoin in cosmetic end products varies by product type, following relevant regulatory requirements and industry practices:
- Leave-on products (serums, creams, masks, eye creams): 0.5%–5.0%
- Rinse-off products (cleansers, shower gels, toners): 0.1%–1.0%
- Sunscreen products: 1.0%–3.0%
★Is Ectoin Powder allowed to be added to cosmetics in China, the EU, the US, South Korea, and Japan?
Ectoin (INCI Name: ECTOIN) is allowed to be added to cosmetics in all five regions
★Which cosmetic ingredients work better with Ectoin Powder for moisturizing and brightening effects?
Ectoin + Hyaluronic Acid (HA) + Alpha-Arbutin
Ectoin + Niacinamide (Vitamin B3) + Glycerin
Ectoin + Sodium Ascorbyl Phosphate (SAP) + Panthenol
Ectoin + Ceramides + Tranexamic Acid
★Can Ectoin Powder be used with UV-protective cosmetic ingredients? If yes,do you recommended Pairing Ratios
Yes, Ectoin can be perfectly paired with UV-protective cosmetic ingredients.
Recommended Pairing Ratios: Ectoin 1.0%–3.0% + Avobenzone 1.0%–3.0% (max allowable concentration in China is 3%); Ectoin 1.0%–3.0% + Octinoxate 2.0%–7.5% (max allowable concentration in China is 7.5%); Ectoin 1.0%–3.0% + Octocrylene 2.0%–10.0% (max allowable concentration in China is 10.0%).
★What is the solubility of Ectoin Powder for cosmetic formulation?
Solubility in Water: Ectoin ishighly soluble in water , and its aqueous solution presents a clear, colorless to light yellow liquid, which is consistent with the water solubility test standard of cosmetic-grade Ectoin. A 5% aqueous solution of Ectoin has a pH value of approximately 6.0–7.0, which is close to the skin’s physiological pH and suitable for direct addition to water-based cosmetic formulas.
★How to Prepare Ectoin Solution?
Pour the weighed Ectoin into a clean beaker, add an appropriate amount of deionized water (about 80% of the target volume), and stir with a magnetic stirrer (or glass rod) at room temperature. For crystalline Ectoin, the stirring time can be properly extended (5-10 minutes) to ensure complete dissolution; for powder Ectoin, it can be completely dissolved in 3-5 minutes.
★Comparison of Moisturizing Effects: Ectoin vs. HA
The "hydration shield" formed by Ectoin can continuously lock in moisture and reduce water loss, maintaining skin hydration for a long time even in harsh environments.
The water absorbed by HA is easily evaporated if not supplemented in time, and its moisturizing effect is greatly affected by the environment