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Beta-Glucan Barrier Sunscreen SPF 50+

Beta-Glucan Barrier Sunscreen SPF 50+

Product Description

Product overview

Made in South Korea K-BEAUTY

iUNIK Beta-Glucan Barrier Sunscreen SPF 50+ PA++++ is a lightweight K-beauty chemical sunscreen built on a triple-layer oil-in-gel-in-water structure. It pairs a five-filter UVA/UVB system with beta-glucan, peptides, and skin-loving ferments to protect, deeply hydrate, and reinforce the skin barrier — all with a serum-like, white-cast-free finish.

SPF 50+ PA++++ No White Cast Fragrance-Free Vegan & Cruelty-Free Beta-Glucan + Peptides 5-Filter UVA/UVB Barrier Support
Pregnancy
Yes
Fungal Acne
No
Comedogenic
2/5
Size
60ml / 2.02 fl oz
Protection
SPF 50+ PA++++
Origin
South Korea
Key Active
Beta-Glucan
Price
~$21
Real reviews · YouTube Shorts
Why it's different

Five-Filter Defense

A 5-layer modern organic filter system delivers broad-spectrum SPF 50+ PA++++ covering the full UVA and UVB range with photostable protection.

01

Texture & feel

SENSORY
Consistency
Serum-like oil-in-gel
Scent
Fragrance-free
Absorption
Fast (~30 sec)
Finish
Natural, no white cast

Five-Filter Defense

A 5-layer modern organic filter system delivers broad-spectrum SPF 50+ PA++++ covering the full UVA and UVB range with photostable protection.

Beta-Glucan Hydration

Beta-glucan and GreenDiol® flood skin with lasting moisture and reinforce the barrier — the brand claims it holds more water than hyaluronic acid.

Aging-Shield Peptides

Argireline (Acetyl Hexapeptide-8) plus Panax ginseng help soften the look of fine lines and support elasticity for a slow-aging effect.

Zero White Cast

The triple-layer oil-in-gel-in-water texture melts in like a serum and dries down invisibly across all skin tones.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding

Uses only modern, large-molecule UV filters with no oxybenzone or octinoxate, so it's generally considered pregnancy-friendly. Always confirm with your doctor.

Fungal Acne (Malassezia)

Contains stearic acid, stearyl alcohol and chlorella ferment, which can feed Malassezia yeast — not ideal for fungal-acne-prone skin.

Sensitive Skin

Fragrance-free, alcohol-free and EU-allergen-free, with soothing allantoin, panthenol and beta-glucan to calm and comfort.

Reef Consideration

Free from oxybenzone/octinoxate, but it does contain butyloctyl salicylate; rinse-off impact on reefs isn't fully studied.

Active Layering

Plays well with most serums and treatments. Apply as the final daytime step over your hydrating and treatment layers.

Eye Area

As with many chemical sunscreens, it may sting if applied too close to the eyes — keep a small margin around the eye area.

03

Ingredient breakdown

INGREDIENTS

Five-Filter UVA/UVB System ~5–10% eachProven

A blend of next-generation organic filters — Ethylhexyl Triazone, Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB), Drometrizole Trisiloxane (Mexoryl XL), Terephthalylidene Dicamphor Sulfonic Acid (Ecamsule/Mexoryl SX) and Diethylhexyl Butamido Triazone — that together cover the entire UVA and UVB spectrum.

  • UVB: Ethylhexyl Triazone is one of the most effective, photostable UVB filters, peaking around 314nm.
  • UVA: DHHB delivers high UVA protection (320–400nm); Ecamsule absorbs 290–400nm.
  • Broad + stable: Drometrizole Trisiloxane covers both UVA (344nm) and UVB (303nm) and is highly photostable.
These filters are approved in the EU, Korea, Japan and Canada but are not FDA-approved, so US availability is limited.

Beta-Glucan ~0.1–1%Promising

A polysaccharide from yeast and fungi cell walls that hydrates deeply, soothes, and helps reinforce the skin's natural barrier while acting as an antioxidant against free radicals.

  • Hydration: Binds large amounts of water; iUNIK claims it holds up to ~20% more moisture than hyaluronic acid.
  • Repair: Studies suggest it can penetrate skin to support wound healing and may reduce the look of wrinkles.

Acetyl Hexapeptide-8 (Argireline) ~3–10%Promising

A popular "Botox-like" peptide that helps relax micro-muscle movements, potentially minimizing the appearance of expression lines while supporting overall skin firmness.

  • Smoothing: May soften the look of fine lines by reducing repeated micro-movements.
  • Support: May also help support collagen for firmer-feeling skin.
It's not as powerful as Botox, and long-term clinical research on peptides remains limited.

Panthenol & Allantoin ~0.1–2%Proven

A classic soothing duo. Panthenol (pro-vitamin B5) hydrates and supports the skin's healing process, while allantoin calms irritation and gently encourages cell turnover.

  • Panthenol: A humectant that binds water and aids skin recovery.
  • Allantoin: Recognized by the FDA as a skin protectant in OTC products up to 2%.

Ferment & Ginseng Complex Trace–1%Promising

Lactobacillus and chlorella ferments plus Panax ginseng extract round out the formula with antioxidant and barrier-supporting benefits for a calmer, more resilient complexion.

  • Barrier: Lactobacillus ferment has been shown to support ceramide levels and reduce transepidermal water loss.
  • Antioxidant: Panax ginseng helps shield skin from free-radical damage.
Chlorella ferment is not considered fungal-acne safe, contributing to this product's overall malassezia caution.

42 ingredients

Water, Dibutyl Adipate, 2,3-Butanediol, Ethylhexyl Triazone, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Drometrizole Trisiloxane, Terephthalylidene Dicamphor Sulfonic Acid, 1,2-Hexanediol, Butyloctyl Salicylate, Behenyl Alcohol, Tromethamine, Diethylhexyl Butamido Triazone, Diisopropyl Sebacate, Vinyldimethicone, Arachidyl Alcohol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Methyl Methacrylate Crosspolymer, Caprylyl Methicone, Batyl Alcohol, Stearic Acid, Sodium Polyacryloyldimethyl Taurate, Arachidyl Glucoside, Polyacrylate Crosspolymer-6, Stearyl Alcohol, Allantoin, Ethylhexylglycerin, Panthenol, Lecithin, Caprylic/Capric Triglyceride, Microcrystalline Cellulose, Cellulose Gum, Glucose, Butylene Glycol, Propanediol, Beta-Glucan, Maltodextrin, Chlorella Ferment, Lactobacillus Ferment, Panax Ginseng Extract, Sodium Benzoate, Glyceryl Caprylate, Acetyl Hexapeptide-8.

FREE FROM: Fragrance, essential oils, harsh/drying alcohols, EU allergens, oils, parabens, sulfates, and oxybenzone/octinoxate. Vegan & cruelty-free.
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
Toner
3
Serum
4
Eye Cream
5
Moisturizer
6
Sunscreen

Always the final step of your morning routine — apply after moisturizer and before makeup. Reapply every 2 hours of sun exposure.

05

How to use

HOW TO USE
1

Apply Generously

As the last step of your AM skincare, dispense about two finger-lengths for the face and neck to reach the labeled SPF.

2

Spread Evenly

Gently massage over face and exposed areas for full, even coverage, then let it set for 1–2 minutes.

3

Layer Under Makeup

Once absorbed, apply makeup as usual — the serum-like finish helps makeup sit and last well.

4

Reapply

Reapply every 2 hours of direct sun, and after sweating or swimming, for continued protection.

06

Who is it for?

WHO

Perfect for you if:

  • You want high SPF 50+ PA++++ with zero white cast
  • You have dry, dehydrated or normal skin that needs extra moisture
  • You like anti-aging peptides built into your sunscreen
  • You prefer fragrance-free, vegan, cruelty-free formulas
  • You dislike heavy or greasy sunscreen textures

Consider alternatives if:

  • You're fungal-acne (malassezia) prone — it contains triggers
  • You specifically need US-FDA-approved UV filters
  • You want a true matte finish for very oily skin
  • You prefer mineral-only (zinc/titanium) sunscreens
  • You react to fatty alcohols
07

Skin type compatibility

SKIN TYPES
Dry Skin
Excellent

Beta-glucan and GreenDiol® deliver lasting moisture without feeling heavy or greasy.

Normal Skin
Excellent

Comfortable serum-like feel paired with strong, broad-spectrum protection.

Combination
Good

Lightweight and balanced; a light setting powder can help control the T-zone.

Oily Skin
Good

Absorbs fast with low residue, though the finish is natural rather than fully matte.

Sensitive
Good

Fragrance- and allergen-free with soothing actives, but it's a chemical sunscreen — patch test first.

Acne-Prone
Moderate

Low comedogenic rating, but not fungal-acne safe — best for non-malassezia breakouts.

08

Results timeline

8–12 WEEKS
Immediately

UV Protection Active

Once applied and set, broad-spectrum SPF 50+ shields against roughly 98% of UVB rays plus strong UVA defense.

100% on application
Day 1

Hydration & Comfort

Skin feels softer and more hydrated right away, with no tight or greasy after-feel.

64% noticed
2–4 Weeks

Calmer, Smoother Barrier

Consistent daily use supports a more comfortable, less reactive skin barrier.

~55% noticed
8–12 Weeks

Anti-Aging & Even Tone

Sustained SPF plus peptides help prevent new photo-aging, fine lines and dark spots over time.

~45% noticed
09

Ratings by platform

14+ REVIEWS
SkinSort
3.7
Rating
14
Reviews
Main complaint: Finish can read slightly dewy for very oily skin
YesStyle
4.5
Rating
Limited
Reviews
Main complaint: Newer launch, so fewer long-term reviews
Amazon
4.4
Rating
Approx.
Reviews
Main complaint: 60ml runs out fast with proper reapplication
Stylevana
4.5
Rating
Approx.
Reviews
Main complaint: Occasional stock and availability gaps
10

Pros & cons

BALANCED

Praised

  • High, photostable SPF 50+ PA++++ five-filter protection
  • Genuinely no white cast across skin tones
  • Hydrating beta-glucan plus barrier-supporting ferments
  • Fragrance-free, vegan and cruelty-free
  • Bonus anti-aging peptides in a sunscreen

Criticized

  • Not fungal-acne (malassezia) safe
  • UV filters aren't FDA-approved (limited US availability)
  • Finish too dewy for those wanting full matte
  • 60ml empties quickly with correct reapplication
  • Limited long-term reviews (newer launch)
11

Budget-friendly alternatives (dupes)

DUPES
85% Match
Relief Sun : Rice + Probiotics SPF 50+ PA++++
$18.00
Budget Pick

Cult-favorite chemical sunscreen with the same no-white-cast, comfortable finish. Uses rice and probiotics instead of beta-glucan, with similar hydration at a lower price (50ml).

75% Match
Centella Calming Daily Sunscreen SPF50+ PA++++
$11.90
Budget Pick

Same brand, centella-focused and very soothing for reactive skin. Less hydrating and without the peptide complex, but the most affordable iUNIK SPF (60ml).

70% Match
Ultra-Light Invisible Sunscreen SPF 50 PA++++
$16.00
Budget Pick

An ultra-light, truly invisible daily filter. Fewer treatment actives and lighter on hydration, but excellent as a barely-there everyday SPF (50ml).

12

Comparison with competitors

SIDE-BY-SIDE
Relief Sun Aqua-Fresh Rice + B5 SPF 50+
Key Active Rice + Probiotics
Protection SPF 50+ PA++++
Size 50ml
Finish Dewy, no cast
Fungal-Acne Safe No
Best For All / dry skin

SKIN1004 Hyalu-Cica Sun Serum

Key Active Centella + Hyaluronic Acid
Protection SPF 50+ PA++++
Size 50ml
Finish Fresh, lightweight
Fungal-Acne Safe Yes
Best For Sensitive / calming
COSRX Ultra-light Invisible Sunscreen SPF50
Key Active Lightweight filters
Protection SPF 50 PA++++
Size 50ml
Finish Invisible, light
Fungal-Acne Safe No
Best For Daily / oily skin
13

Storage & shelf life

12 MONTHS
Period After Opening (PAO)

12 months after opening

Storage

Store in a cool, dry place away from direct sunlight and heat

Packaging

Squeeze tube (60ml)

Travel Friendly

Yes — 60ml is under the 100ml carry-on limit

13

Frequently asked questions

FAQ

Generally, yes. It uses only modern, large-molecule UV filters and contains no oxybenzone or octinoxate — the chemical filters most often flagged during pregnancy. Its large-molecule filters have very low skin penetration. As always, confirm with your OB-GYN or dermatologist before adding any product during pregnancy.

No. It contains stearic acid, stearyl alcohol and chlorella ferment, which can feed Malassezia yeast. If you're prone to fungal acne, a fully malassezia-safe option like the SKIN1004 Hyalu-Cica Sun Serum may suit you better.

Yes. Apply your treatment serums first and use this sunscreen as the final morning step. Reserve actives like retinol and AHA/BHA for your nighttime routine, and keep daily SPF on top during the day to protect newly resurfaced skin.

It shines on dry, dehydrated, normal and aging skin thanks to beta-glucan and peptides. Combination and oily skin can enjoy it too, though the finish is natural rather than fully matte. It's not the best fit for fungal-acne-prone skin.

UV protection is immediate once applied and set. Hydration and comfort are usually noticeable from day one, while barrier-strengthening and anti-aging benefits from the peptides build gradually over roughly 4 to 12 weeks of consistent use.

It's always the last step of your morning skincare — after your toner, serum and moisturizer, and before any makeup. Sunscreen should sit on top of your skincare, not underneath it.

It has a low comedogenic rating (around 2/5) and is marketed as non-comedogenic, so it's unlikely to clog pores for most people. Keep in mind it isn't fungal-acne safe, which is separate from clogged pores — patch test if you're easily congested.

About 12 months after opening (PAO). Because sunscreen filters can degrade over time, use it within its shelf life and replace it once the PAO period passes to ensure you're getting full SPF protection.

— Skincarisma verdict
4.2 / 5 ★★★★☆

Verdict: The iUNIK Beta-Glucan Barrier Sunscreen is a standout daily SPF for dry, normal and aging skin that wants protection plus treatment in one step. Its five-filter UVA/UVB system delivers serious, photostable SPF 50+ PA++++ with genuinely no white cast, while beta-glucan, peptides and ferments hydrate and reinforce the barrier. The main caveats: it isn't fungal-acne safe, the filters aren't FDA-approved (limiting US availability), and the natural finish may feel a touch dewy for very oily skin. For everyone else seeking a hydrating, modern K-beauty sunscreen, it's an easy recommendation.

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

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Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

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Notable Effects & Ingredients

anti-aging Anti-Aging from 2 ingredient(s):
Beta-Glucan Acetyl Hexapeptide-8
wound Promotes Wound Healing from 2 ingredient(s):
Allantoin Panthenol
question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
3
oily-skin Oily/Acne-Prone Skin
1
sensitive-skin Sensitive Skin
1
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
76% 2% 21%

Product ingredient list

Showing first 5 of 42 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
0 Unknown
Dibutyl Adipate
Emollient, Skin Conditioning, Solvent
0 Unknown
2,3-Butanediol
1 Unknown
Ethylhexyl Triazone
Uv Absorber, Uv Filter
2 Unknown
Diethylamino Hydroxybenzoyl Hexyl Benzoate
Uv Absorber, Uv Filter
UV Protection
VIEW ALL INGREDIENTS