Pinaka mura at pinaka mild na retinol sinigurado ko talagang effective at quality to sa murang halaga 230 pesos lang 30ml na hanggang next year na sya gagamitin0.5% waterbased G21 retinol serum Sa mga beginner need nyo panoorin yung video para hindi kayo dumaan sa purging stage Good for acne prone skin, anti wrinkles, dark spots, skin texture no hapdi feels no peeling!