Don't know why there's not much reviews on Makeup Alley? Maybe because of the price? Although this is a anti-aging serum and I'm just 24, but the MUA highly recommended this to me and I gave it a try. I've been using it day and night about 3 weeks and it works great. First of all, it doesn't break me out, my skin is quite sensitive and easy to breakout (irritation of beauty products and hormones), but it's safe for me and it stabilized my skin condition. My skin feel soft, more glow and smoother than before, less breakout. It have a wooden scent and the texture is kinda watery, absorbed quickly, not sticky. When I finish this bottle I may try out the forever light creator serum!

I am 51 years old and I stared to use this product in December last year. After four months I have to say that this product is really good; It's not the best one because not minimise my pores, but my skin is soft, moisturised and some wrinkles almost vanished.
I've bought both: the Serum and the SPF15 Fluid and I regret not have bought for the eyes.

I got some generous samples of everything from the range bar the eye cream, which i hear is lovely. However, i'm not loving this, the second ingredient is alcohol, can someone tell me why?! Is there a reason or is it just to make it dry into your skin quicker to give the 'appearance' of smoother plumper skin, like the chanel hydra beauty serum? I think this is a gimmick product, works lovely as a primer under foundation as the alcohol absorbs all your oils but does it really have anti ageing benefits as opposed to similar priced serums out there? I don't know, but in my humble opinion i'm going to say no, i think estee lauders advanced night repair, nudes pro genius oil or something else would be much more beneficial. I'd say try this before you buy it, alcohol denat is a cheap alcohol too and can be very irritating to acne prone or sensitive skins so beware, it's also in the eye serum and night cream too which i find alarming as you really shouldn't put drying alcohol under your eyes when there's so few oils there already! I did it purely for testing purposes and saw no benefits, again kiehls midnight recovery or the new lauder ANR serum would be better choices i think.

I have used this serum for about 10 weeks. First of all I must say that this serum does live up to its claims about 80% when it comes to results but the reason I gave it 2 lippies is because this results are just temporary and I will explain this.
I am only 24 and do not have any deep wrinkles, but I do have very dry skin and the weather here in Ireland during the colder months make my skin even worse. I received this serum as a gift along with other YSL products for Xmas and gave it a go religiously every day, day and night for about 10 weeks.
Results: Skin seemed a tiny bit tighter, fine lines under my eyes seemed a bit smoother and smile lines were much smoother. Complexion was fairly clear with the odd random spot. Skin looked smooth enough but definately not "glowing".
Now the reason why I gave this 2 lippies is because this serum doesn't actually improve your skin condition whatsoever. As soon as I stopped using my skin went from very dry to Sahara desert, my skin looked old and thirsty and I was left with little bumps on my forehead. Complexion looked even more dehydrated and dull since I started using the serum.
So you pretty much have to keep using this for the rest of your life to keep your skin looking decent, else the temporary effect you get is reversed and comes back at you even bigger.

I have been using this serum for 3 weeks now and its doing wonders for my skin already.

I have had so many skin problems over the last few months since my baby's birth my skin has become sensitive patches of eczema, dull looking and dark uneven skin. Since I have used this its improved my skin it feels so soft, plumped, face looks one colour and you can visibly see the difference its made.

It is expensive but worth it i was so stressed out about finding the right serum or product but this was worth every penny.

I was able to use clinique moisture intense face cream and clinique 3 step system cleanser kit that I have been using from before too. Once I finish these I will invest into more ysl products.

I thought this product was an expensive pile of uselessness.
I was persuaded to buy it whilst christmas shopping at the YSL counter. The counter girl was so positive about it and I'm such a sucker for a pretty bottle that I thought i'd give it a whirl.
The first time I put it on I thought 'where did that go to?', it felt like water and immediatly soaked into my skin and was gone leaving a sort of veil of slight tackiness to my face.
After a week or so I actually got used to the texture and I didn't mind it. I got used to using the pipet and found that it contained the right amount for my face.
Anyway I deligently used it untill it ran out. There was the odd day I thought it was working and my face seemed clear and bright and then the next day i'd wake up with my face a bit spotty and dry and think maybe it wasn't working.
After I ran out of it, I had a massive clear out of all my face products and decided to go back to basics with water and an olay moisturiser. Tbh my skin looks 100% better now then it did when I was faffing around with the Youth Liberator Serum. I actually think the serum was doing nothing other than contributing to unbalancing my skin. I peer every day at my wrinkles in the mirror lol and I can honestly say the Youth Liberator Serum did absolutly diddly squat.
I don't think you can buy anything in a bottle that you can't get with a healthy diet, good genes and SPF. I gave this a mark for the packaging, it was very lovely and probably what you are mostly paying for!

This serum is amazing! I got a sample as a GWP but fell in love with it that I had to get the full size. 2 drops of this and you're skin will sing hallelujah. You can instantly feel your skin sinking this serum in and it really helped with my skintone and redness (I am in my early 20's so can't really say what it does for lines/maintaining youth). Applying this before foundation helps give a sort of glowy effect too. Would be a nice kind of primer for dry skinned gals!
There are 2 things about this I don't like though. First of all, it's fragranced. My skin doesn't mind fragrance, but I just prefer unfragranced skincare. I feel that it'd be better for my skin. Also, the packaging is annoying. The design of the bottle is luxurious, and there's no problem using the product when it's brand new. However, when you've used up a lot of the product, it's a real b$@% to get the product out.

I got a very generous sample of this, so I can't comment on long-term usage but I have to rave about it anyway. This serum allowed me to wear foundation again! My skin is so dry this winter that no primer/foundation mix has worked so far; they just accentuate the flakes. That I could now easily apply even a sightly matte foundation was a surprising but very welcome side effect of this serum. I'm excited to try a whole bottle, especially as even my young skin benefited very noticeably from my several uses and became much brighter and plumper.

This is my HG serum. Glides on- 1 drop does your whole face so even though it's pricey - will last a long time. Instantly improves skin texture and within days lines are softened. Long term effect good too. I can't believe only do few reviews- this stuff is amazing. I have the eye serum too and it's a joy under makeup. My only critique would be that id prefer a pump as the pipette holds a lot of product, but overall I LOVE this!

I bought some of this in a set with the eye cream from the airport, and it is amazing! not only does my skin feel amazing as soon as soon as I put it on, the lasting effects are good too (only been using for a couple of weeks) not only that after you put it on your foundation glides on i don't even bother wearing face primer any more.