ONE THING Hyaluronic Acid Complex 150ml

2 reviews
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One Thing’s Hyaluronic Acid Complex targets a host of universal concerns like dryness, dullness, and a loss of elasticity.

The brand’s formulas are renowned for offering a potent single ingredient extract that can be used on all skin types, even those with sensitive or problem skin.

This HA serum is loaded with a mix of low and high weight hyaluronic acid molecules so they’ll be able to penetrate all layers of the skin — from the superficial epidermis to the lower dermis - ensuring better, more visible results. You’ll see an increase in hydration, creating plumper, infinitely more glowing skin, a tighter skin appearance and smoother, less visible fine lines and wrinkles with this potent essence.


  • A mix of low molecular weight and high molecular weight Hyaluronic Acid


This glow-giving essence is a true multi-tasker. Apply it to a cotton pad and sweep it over skin for a single layer of post-cleanse hydration. Or, layer it under or over the brand’s other essences — paired with Centella Extract it acts like a soothing, hydrating cocoon for irritated skin. You can also mix a few drops into your favourite lotion or cream or soak a cotton pad in the essence and apply it to any problem areas for 10 minutes as an SOS skin pack. The options are endless with this luminising, skin-smoothing must-have. 

Customer Reviews
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Nabila K.
United Kingdom
  • What is your skin type? NormalCombination
  • What are you skin concerns? AgingBlemishesSensitive skinPoresDullness
  • What is your age? 25-34

Love this!

I’ll start by saying I’m not a big fan of hyaluronic acid and I think HA products (where it’s the main ingredient) are a bit pointless. But I don’t know what magic is in this, because it’s amazing. It’s so simple, but it hydrates my skin and makes my skin feel so soft and smooth! I couldn’t stop touching my skin when I first used it! I bought the mini in store and loved it so much I had to buy the full size.

Hannah L.
United Kingdom United Kingdom
  • What is your skin type? Combination
  • What are you skin concerns? AgingBlemishesSensitive skinPoresRedness
  • What is your age? 35-44

surprisingly good

I am yet to see long term effects of this Hyaluronic Acid Complex, but as all other things One Thing I love the simplicity and purity of the product, and my very sensitive and reactive skin definitely agrees with it. I've also found a bit of a surprising good use for it; I tend to get very dry hair at my hairline after washing my hair; and it creates two almost 'tufts' of dry hair right by the face which has really annoyed me (and using a heavy conditioner up by the scalp has more than anything just made my hair a bit flat), - so I tried applying this (not a lot needed) in those two spots at the front and a little at my ends too, and let it sit for a few minutes before proceeding to wash my hair as normal, and the dryness and 'tufty' look was no longer there after my hair dried.

Aqua, Butylene glycol, 1,2-Hexanediol, Hydrolyzed sodium hyaluronate, Sodium hyaluronate, Ethylhexylglycerin

After cleansing, apply this extract in a variety of ways. Use it as a toner and let it absorb into skin; soak cotton pads in it and apply them to your face for a bespoke sheet mask; dispense it into a spray bottle and use it as an on-the-go mist; or add a few drops into your favourite moisturiser to reap its benefits by multi-tasking. Follow with a serum and moisturiser.

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