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This is one of my hidden gems. NIOD stands for Non-Invasive Options in Dermal Science, it is a sister brand of The Ordinary, and one of the lesser-known brands under the Deciem umbrella. Their product ethos is similar however NIODs prices venture slightly higher than The Ordinary’s with an aim to deliver more luxurious skincare. 

If you‘ve read my review of The Ordinary’s Hyaluronic acid + B5, you will already be aware of the importance of multi-molecular weights in HA serums. As the name suggest, this product contains different sized molecules to ensure the hyaluronic acid can penetrate through the layers of skin and really work its magic.

There are 15 hyaluronic compounds in this serum, including MMHC2; a very active form of HA which NIOD state “offers pro-repair support for healthy-looking skin with improved elastic appearance”. All very technical, isn’t it?

As with most serums, instructions advise to apply a small amount to face and neck area after cleansing and toning but before heavier products. This worked well for me on slightly damp skin, after a facial spritz for example.

NIOD HA serum: Products


  • The packaging feels high quality, from the box it comes in to the brown bottle and the shape of the applicator. It was a pleasure to use, and the narrow end of the pipette ensured I was never wasting product.

  • I really noticed the difference in my skin even just after a couple usages. I personally apply it at night to rehydrate my skin whilst I sleep. It works particularly well post-mask or exfoliating treatment, and my skin completely drinks it in. By the morning I notice a plumper, juicer complexion every time. The times I have used it in the morning it’s left me with super quenched, glass-like skin - making a great base for makeup.

  • It slots into the regime seamlessly; you can apply it AM/PM and I have found it highly effective without feeling harsh.

NIOD HA serum: Text


  • The price is a little high, in particular when you compare it to The Ordinary’s HA. Nonetheless, I believe it’s totally worth it. Aside from the fantastic results, it also lasted a decent length of time. I use it around 2-3 times a week, in rotation with other serums, and a 15ml bottle lasted around 4 months.

  • The smell is quite clinical, an aspect which hasn’t bothered me however I have seen a couple reviewers comment on it so it’s worth a mention.

NIOD HA serum: Text


Did I like it? Yes!

Price? £38 for 30ml, however you can easily find it for £25 for 15ml if you wanted to give the mini version a try first.

Would I repurchase? I’m on my second bottle as I type this. I really don’t see myself reaching out for another HA serum any time soon.

Average online review ratings out of 5: 4.2 NIOD, 4.7 Cult Beauty, 4.6 Google

NIOD HA serum: Text
NIOD HA serum: Text
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