MamaEarth Offers: Get Free Vitamin C Face Kit On All Orders above Rs. 499 at Mamaearth using the latest coupons, deals & offers from CouponZania. Shop from Mamaearth and receive a Vitamin C Skincare Face Kit free for Skin Illumination. Don’t forget to use the coupon code to avail of the offer. The minimum purchase value required is Rs. 499.