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Iunik Beta-Glucan Power Moisture Serum 50ml, clear glass dropper bottle with pale blue label, front
Iunik Beta-Glucan Power Moisture Serum graphic: bottle on a lab bench, describing beta-glucan as protecting skin from external stressors
Hand holding Iunik Beta-Glucan Power Moisture Serum beside a graphic on beta-glucan for soothing and barrier support
Iunik Beta-Glucan Power Moisture Serum bottle with a white frilly mushroom resting on top
Iunik Beta-Glucan Power Moisture Serum 50ml, clear glass dropper bottle with pale blue label, front
Iunik Beta-Glucan Power Moisture Serum graphic: bottle on a lab bench, describing beta-glucan as protecting skin from external stressors
Hand holding Iunik Beta-Glucan Power Moisture Serum beside a graphic on beta-glucan for soothing and barrier support
Iunik Beta-Glucan Power Moisture Serum bottle with a white frilly mushroom resting on top

Iunik

Beta-Glucan Power Moisture Serum (50ml)

  • £16.99
iUNIK Beta-Glucan Power Moisture Serum is a ten-ingredient hydrating serum built around beta-glucan, with glycerin, sodium PCA and adenosine. It gives dry, dehydrated or sensitive skin a quick drink of moisture, leaving it softer, plumper-looking and ready for the rest of your routine. What it doesBeta-glucan is a humectant: it draws water into the upper layers of the skin and helps skin feel calmer and more comfortable. Glycerin and sodium PCA, part of the skin's own natural moisturising factor, add more hydration, and adenosine is included for the look of fine lines. Why we chose itWith only ten ingredients and no actives to schedule, it is an easy hydration step beside a retinal or acid, for example Purito TXA 6% + Niacinamide 10% + Retinal Serum. There is no fragrance or essential oil in the listed ingredients. Best forDry or dehydrated skinSensitive or easily irritated skinOily skin that still feels tightRoutines with retinoids or exfoliating acidsA simple hydration layer for a glass-skin glowNot ideal ifYou want a treatment for dark spots or breakouts: this is a hydration step onlyYou already have a hydrating serum you like, such as The Ordinary Hyaluronic Acid 2% + B5: you do not need bothYou want it to replace moisturiser: dry skin still needs a creamKey ingredientsBeta-glucan: hydration and comfortGlycerin: draws water into the skinSodium PCA: part of the skin's natural moisturising factorAdenosine: the look of fine linesTexture and finishA clear, light gel serum that absorbs quickly and layers easily under moisturiser. Where it goes in your routineAfter cleansing and toner, before any treatment serum or moisturiser, morning and evening. Use the dropper to apply a few drops to the face and neck and pat in gently. Follow with moisturiser, and sunscreen in the morning. What to expectSkin feels more hydrated straight away. Softness and comfort build with daily use, especially with a good moisturiser on top. Quick facts: 50 ml · 10 ingredients · Beta-glucan, sodium PCA · No fragrance listed · AM and PM · iUNIK, Korean brand
Read more
  • Ten-ingredient beta-glucan hydrating serum
  • Glycerin and sodium PCA for extra hydration
  • Light gel; easy beside retinoids or acids
  • No fragrance or essential oils listed
Helps with
DehydrationDrynessSensitive skinTightness
Best for
DryOilySensitive

In stock. Order by 1pm Monday to Friday for same-day dispatch

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iUNIK Beta-Glucan Power Moisture Serum is a ten-ingredient hydrating serum built around beta-glucan, with glycerin, sodium PCA and adenosine. It gives dry, dehydrated or sensitive skin a quick drink of moisture, leaving it softer, plumper-looking and ready for the rest of your routine.

What it does

Beta-glucan is a humectant: it draws water into the upper layers of the skin and helps skin feel calmer and more comfortable. Glycerin and sodium PCA, part of the skin's own natural moisturising factor, add more hydration, and adenosine is included for the look of fine lines.

Why we chose it

With only ten ingredients and no actives to schedule, it is an easy hydration step beside a retinal or acid, for example Purito TXA 6% + Niacinamide 10% + Retinal Serum. There is no fragrance or essential oil in the listed ingredients.

Best for

  • Dry or dehydrated skin
  • Sensitive or easily irritated skin
  • Oily skin that still feels tight
  • Routines with retinoids or exfoliating acids
  • A simple hydration layer for a glass-skin glow

Not ideal if

  • You want a treatment for dark spots or breakouts: this is a hydration step only
  • You already have a hydrating serum you like, such as The Ordinary Hyaluronic Acid 2% + B5: you do not need both
  • You want it to replace moisturiser: dry skin still needs a cream

Key ingredients

  • Beta-glucan: hydration and comfort
  • Glycerin: draws water into the skin
  • Sodium PCA: part of the skin's natural moisturising factor
  • Adenosine: the look of fine lines

Texture and finish

A clear, light gel serum that absorbs quickly and layers easily under moisturiser.

Where it goes in your routine

After cleansing and toner, before any treatment serum or moisturiser, morning and evening. Use the dropper to apply a few drops to the face and neck and pat in gently. Follow with moisturiser, and sunscreen in the morning.

What to expect

Skin feels more hydrated straight away. Softness and comfort build with daily use, especially with a good moisturiser on top.

Quick facts: 50 ml · 10 ingredients · Beta-glucan, sodium PCA · No fragrance listed · AM and PM · iUNIK, Korean brand

  • Use after cleansing and toner, morning and evening.
  • Apply a few drops to the face and neck with the dropper.
  • Follow with any treatment serum, then moisturiser.
  • In the morning, finish with sunscreen.
  • Patch test first if your skin is sensitive.

Beta-Glucan, Water, Glycerin, 1,2-Hexanediol, Butylene Glycol, Adenosine, Tromethamine, Sodium PCA, Carbomer, Sodium Polyacrylate

Good to know

  • No fragrance or essential oils in the listed ingredients
  • No retinoid and no exfoliating acids
  • Only ten ingredients
  • Retailers list the order differently: check the bottle

What is it best for?

Hydration. It is a light serum for skin that feels dehydrated or tight, and an easy supporting step in routines with retinoids or exfoliating acids.

Is it suitable for sensitive skin?

It depends on your skin. There is no fragrance, essential oil, retinoid or exfoliating acid in the listed ingredients, which is why we include it for sensitive skin. No product suits every reactive skin, so patch test first.

Do I need this and a hyaluronic acid serum?

Probably not. Both do a similar hydration job. Start with one, and if your skin stays comfortably hydrated, your routine already has what it needs.

Can oily or blemish-prone skin use it?

Usually, yes. Oily skin can still be dehydrated, and the light gel texture adds no heavy layer. It is not designed to treat breakouts or unclog pores.

Can I use it with retinol, retinal or exfoliating acids?

Yes. There is no need to alternate them. If your skin is already burning or peeling, pause the active rather than trying to calm it with more layers.

Does it replace moisturiser?

Usually not. It adds water, but a moisturiser helps hold it in. Dry skin in particular should follow it with a cream.

UK Delivery

Orders under £25
Shipping: £2.99
Service: Royal Mail Tracked 48

Orders £25 and over
Shipping: FREE
Service: Royal Mail Tracked 24

Dispatch & Delivery Times

  • Orders placed before 1pm Monday to Friday are dispatched the same working day.
  • Orders placed after 1:00 PM are dispatched the next working day.
  • Royal Mail Tracked 48 typically delivers within 2 working days.
  • Royal Mail Tracked 24 aims for next working day delivery.

So for orders £25 and over placed before 1pm on a working day:

Order before 1pm → dispatched same day → Royal Mail Tracked 24 aims to deliver the next working day.

Please note that delivery times are estimates and may occasionally vary during busy periods, bank holidays or due to Royal Mail delays.

Beta-Glucan Power Moisture Serum (50ml)

£16.99