Kiki Osinajo’s skincare company signs Rahama Sadau as brand ambassador. Kannywood actress, Rahama Sadau has secured a fresh endorsement deal  as the face of skin care product, Koyin Skincare. She was unveiled via the company’s Instagram page. “Rahama Sadau, welcome to the @konyinskincare_ family as our first BRAND AMBASSADOR. Konyin is heading up north. Looking forward to the glow journey”, announced Koyin Skin […]