3. How much percentage of HA do we need?
For optimal results, apply a product containing 1-2% Hyaluronic Acid.
As HA is soluble in the aqueous phase, water-based formula is the best option when HA presents as the primary active ingredient.
4. Can I combine HA with other active ingredients, like Vitamin A or C...?
It is suggested to use Vitamin A (retinol and retinoids) or Vitamin C (L- Ascorbic acid) and HA products separately because they are most effective at different pH levels.
However, if your product contains vitamin C derivatives like our Vitamin C Brightening Facial Serum, you can combine with HA containing products because both work best at a pH of 5.5-6. Read more...
It is always recommended to wear sunscreen SPF 30 or above for more excellent protection.