Ok so I have very oily skin and I'm just getting off Proactiv after many years on it, and many more attempts to get off it. The SA said I have some premature fine lines for my age so I thought I'd try this serum to counteract the damage benzol peroxide has done on my skin. I have to say so far I really like this product. Absorbs quickly since its almost the consistency of water, little to no smell (for me this is a good thing), 2 pumps does my whole face, neck, and décolleté, and my skin is luminous for hours after. My redness has also calmed down since using it. One minor downside is the way my face feels kinda sticky after I put it on, but this goes away once I put a moisturizer on top. Overall not a perfect product, but definitely close to.

I tried Christian Dior Hydra Life Serum Sorbet Hydratation Jeunesse Youth Essential Concentrated Sorbet Essence as a GWP (Sample) from Sephora.
This product is meant to be applied before one applies one's moisturizer in order to enhance it's effectiveness. And I am sure that it does just that. It's a nice product. However; it's essential ingredient is glycerin, which works well, temporarily plumps the skin and seals moisture in well. It's also an ingredient that is very cheap and can be found by itself in many homeopathic stores for about $3 - $5 a bottle for 2 fluid ounces. The ingredient that Dior uses to bind this is Alcohol (actually listed as the second ingredient following water, glycerin is third).
Now these are all good ingredients (well alcohol is drying, I don't use it to cut my natural glycerin). BUT, you don't have to pay high end Christian Dior prices in order to get these products.
In fact, I often get the same effect by taking natural glycerin and a drop of rose water, rubbing it between (clean of course) palms and using this on my face and neck before using my usual moisturizer. This enhances the moisturizer when my really dry skin is acting up, keeps my skin more smooth and dewey for hours and does NOT cost me an additional $60 a bottle.
So, I recommend that you save yourself $60 a bottle and get a $3 bottle of glycerin and $5 bottle of rosewater at your local natural healthcare or homeopathic or farmacia store. Mix a little glycerin with a few drops rosewater and rub between your palms. Now use this on your face.
You have the same product as Christian Dior's Hydra Life Serum Sorbet, minus the drying Alcohol and minus the cost.