(TrendHunter.com) The Korean skincare brand ma:nyo is promoting its top-selling product — the Pure Cleansing Oil — on the Amazon marketplace. This product is reported to have a leading market position in South…(TrendHunter.com) The Korean skincare brand ma:nyo is promoting its top-selling product — the Pure Cleansing Oil — on the Amazon marketplace. This product is reported to have a leading market position in South…