harga, vitacid, cream, produk, obat, jerawat, salep, krim, gel, kandungan, khasiat, jerawat, retinoic, acid, tretinoin, vitamin, A, wajah, dokter, tekstur, aroma, review, kadar, 0,05%, di, apotek, 0,1%, 0,025%, konsumen, 2020, 2021, breakout, krim, efek samping