Liquid Crystals
Insight's award-winning shine serum that smooths frizz and flyaways for a glossy, polished finish, without weighing hair down.
Winner: Best Serum, HAIR Awards 2022
Vegan and cruelty-free.
Why you'll love it
Organic sesame and linseed oils smooth, nourish and brighten, boosting manageability and helping keep ends looking healthy and intact. The perfect finishing touch after styling.
Looking for more? Read our guide to the best serum for frizzy hair.
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Key ingredients and INCI
Ingredient information is subject to change. To ensure you have the most up-to-date and accurate list, always consult the product packaging you receive.
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The photo don't show this justice because my hair is like a disco ball. my favourite product ever
If you want glass hair that is like silk to touch then you need liquid crystals! Also I can’t believe how long it lasts! I have only just had to buy a new one and now have a stunning glass version (been 3 ish years and I use it all the time, you need the tiniest amount) Can’t shout about this enough and will never use anything else!
Cannot even explain how good this product is! Leaves my hair SO shiny!!!
I use this and hair repair complex and my hair has been transformed, I have heavy bleaching and fly aways but when I use them it looks like fresh hair from the salon
So much shine and my hair is so glossy after using this
Cannot rave about this serum enough the shine it gives my hair is like no other serum I have used. Glass hair, got it locked in! Love, love, love!!
I see this on instagram and hairdressers said it was great for blowdrys and it really is. I use it before and after I dry my hair and its never been so shiny
I use this every week, it is the perfect finishing serum for my blowdries! The sine it gives is unreal! Highly recommend, my hair has never looked better
I love Insight, I love that the ingredients are natural and can’t believe the results from such Prue products. You have me as a customer forever x
WOW! Just wow! Really lovely product, my hair has never looked so healthy and shiny
Stunning
I've been using this for years and I got a cheap one for holiday because I was scared of smashing the glassing my case and the difference was so apparent that I will just never waste money on a cheap one again
I really love this product but I find it hard to get the right amount without my hands being very slippery after use. Will buy again though once I figure it out and when my bottle is empty
This is the only srerum I will ever use its sooooooo good
Was gifted this in a Dry Hair Christmas Box and don’t usually use serum but is such a fantastic addition to my routine. Very nice shine and smells devine
I’ve been using this for over a year and only just purchased a new one, love love love and cannot believe how long it lasts
Great recommendation from my salon.
The perfect finish after you straighten, you get so fly aways all day
My hair has never looked so shiny and glossy
Very thick, it left my hair looking greasy, I will try again with less of it. Smells nice though
10/10 serum and will buy again
I really love liquid crystals the fish you get is beautiful. I use it before drying and then again after
I love this, it leaves my hair so so glossy and shiny and it feels so soft
Lovely consistency and you only need a small amount
Very luxurious serum
OMG my hairdresser got me onto this and I woangel hairnt go back, you can use it before during and after drying and my hair is like angel ahir