Platinum OG is purported to stem from three strains: Master Kush, OG Kush, and a third unknown parent. Flowers are lime green and plump, with prominent orange hairs and a platinum coating thanks to the abundance of THC crystals. A brief, heady onset settles into powerful physical sedation suitable for nighttime use and pain, stress, or anxiety relief, making this precious strain a robust healer. Source: Leafly