At 5,200 ft (1,585 m) above sea level, Kookkal Vineyards (Domaine Kookkal) at Kookkal village near Ooty in the Nilgiris, Tamil Nadu is the highest altitude vineyard on a commercial scale in the country. The fruits produced there – Kookkal Topical Grade™ grapes – have developed heavier skins and seeds as a protective response to higher ultraviolet rays. These skins and seeds, rich in polyphenols and antioxidants, are highly useful in skin care and wellbeing.