Thousands of women sign up to waiting list for new Yves Saint Laurent product Forever Light Creator Forever Light Creator by Yves St Laurent goes on sale tomorrow Over 15,000 have gone online to order a sample voucher Waiting lists are already over 3000, and a dedicated hotline has been set up Contains synthetic glycans - sugars in the skin which decrease with age Range of creams, lotions and serums cost from £35 to £85 The Forever Light Creator anti-aging serum by Yves Saint Laurent uses synthetic glycans to even complexions In an already saturated market, causing a buzz in the "anti-ageing" product world is no mean feat. But the latest offering from Yves Saint Laurent - a collection of products that claim to reverse the march of time through light-creating vitamins - has created a virtual stampede, with a waiting list of over 3000 and a record-breaking 15,000 free sample vouchers downloaded before it has even hit the shops. There is also a dedicated hotline for the Forever Light Creator range as makers YSL attempt to keep up with demand. This frenzy is down to a world first formula protected by thirteen patents, which gave fresher skin immediately to 76 per cent of women tested and a more even complexion within one month of use to an impressive 92 per cent. Inspired by "Glyobiology" the range contains a synthetic version of the glycans that occur in the skin, and took three years to create. These sugars, which help maintain skins smooth appearance and elasticity decrease as skin ages. Yves Saint Laurent was the first beauty company to harness synthetic glycans in their Forever Young Liberator range last year, and its success is likely behind the mania for the new "Forever Light Creator." The serum (£61) is by far the most in demand product in the new range, which goes on sale in Britain tomorrow and costs from £35 to £85. The general manager of Yves Saint Laurent Amandine Ohayon says the technology will: "significantly reduces the appearance of darker pigmentation which distinguishes an older face from the smooth, uniform complexion of youth." However glycans are not merely revolutionising the beauty market. A staggering 18,000 women are waiting for the Forever Light Creator range which promises the holy grail of reversing the effects of aging Glyobiology was described as "one of the 10 emerging technologies that would change the world" by the Technology Review in 2003. The study of these sugars has lead already to the Hib B vaccine against infant flu. Despite this wealth of scientific backing that has consumers prostrating themselves at the alter of Yves Saint Laurent before the products are even on sale, some dermatologists are warning that the claims may not be as miraculous as they claim. Dr Ross Perry of the Cosmetis Skin Clinics says that any effect observed is likely to be temporary. Speaking to the Telegraph he explains: "There is no miracle treatment. As soon as you go back into the sun or get a bit of tan, all pigmentation will come back. However, these warnings will do little to damned the enthusiasm of the 18,000plus British women eagerly awaiting the launch of the Forever Light Creator range tomorrow. The cost of beauty: The most expensive anti-aging creme ever Cult 51 anti-ageing cream s the most expensive in the world Another recent addition to the litany of unusual lotions and potions is an anti-ageing cream which claims to have the most expensive ingredients ever. Cult 51 costs £125 for a 1.6 fl oz (50ml) jar, equivalent to £94,000 a tonne, and is for sale online and at upmarket London store Fortnum and Mason. It had a waiting list of 5,000 before it went on sale last week - a drop in the ocean compared to the 18,000 waiting for the latest Ingredients for a mass market skin care lotion would cost between £800 and £1,500 per metric tonne, while those in a professional cream could cost up £20,000 per metric tonne. However, the materials used in Cult 51 would add up to £94,000 per metric tonne. The most recent product to rival Cult 51 was 111 SKIN Celestial Black Diamond Cream: a potent anti-ageing concoction using rare diamond dust particles that has been developed by NASA scientists and tested on astronauts in outer space. The galactic cream, which is sold exclusively at none other than luxury department store Harrods, doesn't come cheap. Beauty aficionados desperate to turn back the clock must pay a staggering £599 for 50ml. No7 Protect & Perfect Intense Beauty Serum, £23.95, Boots Nivea Visage Q10-Plus Anti-Wrinkle Day Cream, £9.99, Boots Olay Total Effects touch of foundation, £16.99, Boots Snoxin Serum 30ml. From Indeed Labs, £29.99, Boots Frankincense Intense, Neal's Yard Remedies, £55 Shiseido, Bio-Performance Advanced Super Revitalizing Cream, £75