This is a large, 500 ml bottle of Hollyberry retinol serum, so it should last ages.   Only a very small amount of the serum is needed, as a little goes a long way. It applies easily and absorbs quickly. I suffer from dry, sensitive skin but haven’t had any redness, itching, or other adverse reactions while using it.   I’ve been applying it at night and then using my normal moisturiser afterwards. My face does feel softer, but I can’t say I’ve noticed any significant changes in how my skin looks, although it is still early days.   It's a bumper-sized bottle and good value for money (if it works).   Thank you for taking the time to read my review. I hope you found it helpful.

Great price for a big bottle of body serum with retinol. No idea what strength is in it though [hence, the loss of one point] as it doesn't say on the bottle. A little goes a long way as the serum is quite slippery, and spread/massage it in quick before it sinks in and disappears. Works a treat!

I ordered this for Christmas and it arrived very quickly. The only thing I’d improve is the packaging it took me a good 15 minutes to get it out the box

This serum is very easy to use and I’m impressed with how much is in the bottle! It’ll last me a long time that’s for sure. I’ve found a little goes a long way and it’s very easy to apply. I’ve haven’t really noticed a scent or fragrance which is good and I like how well the serum absorbs into my skin. It doesn’t leave it feeling oily or greasy either which is a bonus and I do feel it’s working really well on my skin. I’ve noticed my skin is looking less dull and tired and is much brighter and fresher looking than before. The serum hasn’t caused any irritation or discomfort to my sensitive skin either and my redness has reduced a lot. I think it’s very good value for money and a high quality serum so I do happily recommend it.

I usеd this rеtinol sеrum rеcеntly. It said it could help with linеs and spots, and that was my main reason to try. It's еasy to usе. I just put a littlе on my facе at night after clеaning. No fuss. I'vе noticеd my skin fееls smoothеr. Thosе tiny linеs arеn't as noticеablе as bеforе. Also, my skin sееms a bit plumpеr, which is nicе. It's said to work on spots too. Wеll, I havеn't sееn a hugе changе thеrе yеt, but maybе it takеs morе timе. What's good is that it suits different skin types, еvеn my sеnsitivе skin. No issuеs thеrе. All in all, I think it's bееn a dеcеnt addition to my routinе. It's not a miraclе workеr, but it's madе a noticеablе diffеrеncе in how my skin fееls.