I’ve tried so many vitamin C products and this is by far my absolute favourite. It delivers incredible results and quickly, with zero irritation. It’s is pricy BUT it is very potent and lasts a long time; I only need to use one pump and find that’s more than enough. Agree with other comments about consistency - it is thick but if you apply with another serum or accompany with a mist, it melts in beautifully. A staple in my regimen that I can’t see being replaced by any other vitamin C product! 

Nice high strength. Can see how my skin brightened up. Easy to mix in with other skin care.  An extremely good brand. 

I've used it and it's a good vitamin c serum! it's a high % which is good, it doesn't smell and it leaves my face looking bright and healthy. I think people forget that the job of vitamin c is antioxidant that helps to slow down the signs of ageing.

I have finished my 1st bottle and have to say I loved it. As long as you put it right after any other serum the texture expands just fine and definitely has improved my skin and gotten rid of a lot sun marks/ pigmentation. Would love to repurchase but might wait until there is an offer. I gave it 4 stars because of the price. Otherwise this is great. 

This has brightened my skin and without any irritation. It is important to follow the instructions and apply to wet skin - otherwise its quite sticky. I've knocked one star off because it is expensive.

Not sure if I noticed much of a difference, and I don’t love the sticky texture. It’s fine after five mins of applying but hate the feel on application 

I have tried quite a few vitamin c serums and  have now found my new favourite. The consistency is quite thick so you don’t need a whole pump. I have oily skin and find using a whole pump can make my skin look a tad shiny. My skin is sensitive but am used to vitamin c’s and can tolerate it well. I only use it in the morning and not evening so that could be why. I have been using this for a couple of weeks and can definitely see it looks brighter. I would definitely recommend this, however I have knocked off a star due to the high price point.

I always use some form of vitamin C as part of my daily routine and I keep on going back to this one! Although I have sensitive skin, I'm used to potent actives and because this formula has a waterless base and uses 3-O-Ethyl Ascorbic Acid I have never experienced any irritation, and I also use it around the eye area. It has quite a thick balmy feel to it so I like to use a mist or an essence before, or alternatively mix it in with another serum which makes it melt into the skin and doesn't leave a heavy feeling. If you're looking to firm, brighten, and smooth and you are a seasoned active user you absolutely need to give this one a try!

Love this product, leaves my skin looking naturally radiant. The only downside is the price so have to deduct a star.

I used to love this but you have to be really careful as it really is pretty strong! Just had to throw a bottle away as it caused a bit of a reaction all over my face - rather annoying as until that point I’ve had great experiences with it!