A super intensive concentrate of hyaluronic acid, peter thomas roth viz 1000 intensive hydrating serum promises to keep skin hydrated throughout day and night with an invisible veil of intensive, sumptuous moisture'. '.strtoupper('c')ontaining 75% hyaluronic acid, peter thomas roth viz 1000 intensive hydrating serum achieves hydration by attracting a thousand times its weight in water from the moisture in the air and applying it directly to dehydrated skin'. '.strtoupper('h')elping to increase the skin’s ability to retain moisture it works to smooth out fine lines and rough texture'. '.strtoupper('d')irections of use apply to cleansed face and neck alone or over other peter thomas roth treatment serums'. '.strtoupper('f')ollow with moisturiser and or sunscreen'. '.strtoupper('h')elps to boost the benefits of any moisturiser.