Skin Doctors Youth Cell Activating Night Concentrate Youth Cell contains the latest plant stem cell technology (Phyto Cell Tec) to help delay the appearance of chronological ageing of the skin. These plant stem cells are sourced from a rare long living swiss apple which has the unique ability to regenerate its cells once it falls from the tree. It is this characteristic that when used on the skin promotes the longevity of skin cells. Youth Cell turns on the switch that tells your own skin stem cells to start producing again. Youth Cell combines clinically proven Phyto Cell Tec plant stem cell technology with two of the most powerful anti ageing peptides. It has been scientifically formulated to target your own skin stem cells for results you will see in just 30 days! Youth Cell keeps you looking younger for longer. With its unique combination of plant stem cells & anti ageing peptides Youth Cell works not only at a cellular level to teach the skin how to look young again but also at the skins surface to treat the signs of ageing already visible. Attack ageing from the bottom up & the top down! The Plant Stem Cell technology (Phyto Cell Tec TM) works at the base layer of the epidermis while the peptides Matrixyl 3000TM & Chronodyn TM attack wrinkles & signs of ageing at the skins surface. & when the 2 technologies meet in the middle ageing is history! Clinically proven results Youth Cell Youth Activating Night Concentrate contains 4 active ingredients each clinically proven by scientific trials. See the difference after just 4 weeks. These are Phyto Cell Tec The anti wrinkle effect of Phyto Cell Tec Malus Domestica was evaluated in a study with 20 volunteers aged from 37 to 64 years. Phyto Cell Tec was applied twice daily for 28 days. Wrinkle depth was determined by means phase shifting rapid in vivo measurement of skin. Matrixyl 3000 The anti ageing benefits of Matrixyl 3000 were evaluated in a study with 39 volunteers. Matrixyl 3000 was applied twice daily for 2 months. Renovage The anti ageing benefits of Renovage were evaluated in a study with 24 volunteers. Renovage was applied twice daily over a 6 month period. Chronodyn The effectiveness of Chronodyn was evaluated in a study with 21 female volunteers with an average age of 44. Chronodyn was applied twice daily over 28 days.