Ms Elysabeth Faslund, 01/03/2013 - Elysabeth...

"For all those who found fault with this product, allow me to remind you that you must have something to work with...first.This product is fantastic. Period.It is a major mosturizer, and does everything it is rated to do."

Anonymous, 04/12/2012 - Brilliant!

"I have tried so many creams and serums from many luxe skincare brands over the years and this is by far the most impressive. My normally sensitive dry skin looks calm, clear, smooth and my pores have all but disappeared. Very impressive. This coupled with the Glycolactic Mask are two keepers."

Anonymous, 10/09/2012 - Amazing!

"I have been using this for about 4 weeks and I absolutely love it. My skin has been totally transformed - it is really glowing and my completion is really clear. I would defintely recommend."

Anonymous, 05/09/2012 - Retinoid

"I have been using this product for approximately 6 weeks now and my skin is glowing! I have been getting many compliments. All my skin products are REN and I really like all of them. I have sensitive skin so was a little concerned about the Retinoid, there was no sensitivity what so ever. I am happy."

Mrs Michelle Thompson Marshall, 26/08/2012 - OMG

"I received a sample of this and was so impressed purchased a full size together with the No1 Purity Cleansing Balm. In days my 'tried' skin is glowing - Thank you REN - I am how looking to replace my all my skincare with REN"

Anonymous, 01/06/2012 - Upsets my skin

"Like another reviewer, I hoped the Bio Retinoid Anti-Ageing Concentrate would be like the Omega 3 Night Repair Serum, which my skin loved, but with anti-ageing benefits. I understand that pharmaceutical retinoids can cause skin to look worse before it gets better, so I've persevered in the hope that the same thing would prove to be true for the bio retinoids in the serum, but unfortunately this product doesn't agree with my skin at all. In the immediate term it isn't absorbed well and in the longer term seems to irritate and cause breakouts. I wish I'd known it was possible to try a sample before I bought (it's a lot of money for something of which I've been able to use so little), or just stayed with the gorgeous Omega 3 Night Repair Serum."

Anonymous, 09/05/2012 - Bio Retinoid Anti-Ageing Concentrate

""Have been using this product for a few days now, it is a bit greasy but don't mind as it is a night product. My skin has improved in texture as I also suffer from eczema and this has helped with any small dry patches. Will continue to use and hopefully will continue to see more positive results.""

Mrs erin newell-bird, 17/04/2012 -

"My skin isn't fairing well with this product and find it "too active" for me, leaving me with breakouts if I use it on my entire face. I have dehydrated cheeks, oily t-zone. If I use just one pump on fine lines that seems ok but don't see how I will use it up with in the 9 months use by date... I thought it would be more like their omega night serum with a stronger anti-aging, which my skins just drinks up, but this just sits on my skin. disappointing!"

Anonymous, 03/04/2012 - Thank you

"Thank you for supplying a free sample of bio-retinoid anti-ageing concentrate. I have used the product for a few weeks and have found it to be very good leaving the skin looking fresh and clear."

Anonymous, 03/04/2012 - Bio Retinoid Anti-Ageing Concentrate

"I have been using my sample for over a week now and can definitely see a difference. I do find it a bit greasy, though, and just use it on its own – no need for a separate moisturiser."

Anonymous, 03/04/2012 -

"I really loved this product. At first I was a little scared by the texture (oily) since I have a combination, blemish-prone skin. But it didn't make me break out. The application was pleasant, the product was absorbed rather quickly, though not completely, but this is not really an issue since it's a nighttime product. Only 1, maybe 2 pumps were needed. The smell was also quite unpleasant at first, but the next days I barely noticed it. I really noticed an improvement the day after the 1st application, I found my skin more glowing and feeling deeply hydrated. After a few days, I noticed my skin slightly brighter and plumper. I also need to mention that I have very sensitive, irritable skin, and this product did not irritate me at all."

Anonymous, 03/04/2012 - Bio Retinoid Anti-Ageing Concentrate

"I have been using the product every evening for the last ten days and it is amazing...I will definitely be putting it on my birthday list!! I have suffered with acne from the age of 11, and still to this day as a 34 year old woman I'm looking for a miracle to improve my scarred, spotty and uneven skin....until now that is! My skin feels amazingly smooth, less pitted and the scarring seems less visible. I have lines around my eyes, forehead and mouth but these too are less obvious. My skin genuinely looks glowing and plumper! I love this product and will be telling all my friends about it. But more importantly to me I have more confidence and don't feel so ashamed of how my skin and acne looks. Thank you, you have given me a real boost!"