Can be used morning and evening.

The method of use is also very simple. After cleansing the skin, first use toner, and then use hyaluronic acid stock solution. The dosage of the original solution can be adjusted appropriately according to personal circumstances, and will generally be gradually increased to a maximum of no more than 10 drops. The patting method is conducive to the absorption of the original solution. If you want better results, you can gently massage or pat the face before use.

The above information is for reference only. If you have any questions or need personalized guidance, please consult a professional.