Eterna Quin Trio 30ml

cleanse your face thoroughly before application.
apply a few drops of the serum on the affected areas or the entire face.
gently massage it into the skin until fully absorbed.
use it once or twice daily, preferably in the morning and/or evening.
follow with a moisturizer and always apply sunscreen during the day to protect your skin, especially when using products with active ingredients like lactic and salicylic acids.