Good genes for great skin can come in a bottle. At least, according to the cult skincare label Sunday Riley. One bestseller of this US-based beauty brand is its Good Genes All-In-One Lactic Acid Treatment. The multi-award-winning formula exfoliates skin to clarify and smoothen instantly. Apparently, it is also a go-to for celebrities and models who need an instant skin-boost before shows. Apart from Good Genes, the Sunday Riley skincare line is also famous for its intensely colourful face oils that are as potent as they look. The eponymous brand was founded by Sunday Riley, a cosmetic chemist, almost a decade ago. Today, the brand is available in 12 countries and cities, as it launches in Sephora stores in Singapore, Malaysia, Thailand, Indonesia and the Philippines. At her Sephora launch party in Singapore, Sunday Riley shared her thoughts on the brand, the products, and her own skincare routine with The Beauty Gazette. I have a special relationship with each product because I formulate them. It takes me six months to a year to make each …