ISOI

Brightening Serum

$42.61 USD

Brightening serum for clear, even-toned skin.

Helps reduce dark spots
Improves overall radiance
Lightweight, fast-absorbing texture

Experience the next level of brightening with the upgraded ISOI Brightening Serum.
Now infused with high-performance Rose PDRN, this serum delivers an even more powerful blemish-correcting effect than before. Its advanced formula penetrates deeper to target both surface and deep-seated dark spots while boosting inner radiance—delivering visible results in just 2 weeks. Leveraging ISOI’s signature skincare technology, it goes beyond basic care to address five major types of hyperpigmentation. Enriched with Bulgarian Rose Oil and Arbutin, it ensures a dewy, glowing, and revitalized complexion with every drop.
Engineered to tackle everything from surface spots to deep-seated pigmentation, this potent serum is your ultimate solution for achieving a clear, blemish-free complexion with visible results in as little as 14 days.

• pH level: 5.90~7.90
• 35ml / 1.18fl. oz.

Vegan

Cruelty-Free

Non-Comedogenic

Clinically Tested

Skin Type & Concerns

Skin Type:
For all skin types

Concerns:
Anti-Aging, Antioxidant, Brightening, Dryness & Dehydration, Dullness, Redness, Sensitive, Uneven Texture

How To Use

How To Use:
Apply an appropriate amount (about 1g) during the essence step to your face and neck.

💡Tips:
You can apply it all over or focus on areas with excess pigmentation.

Ingredients

Key ingredients:
Rosa Damascena Flower Water, Arbutin, Niacinamide, Rosa Damascena Flower Oil, Sodium DNA, Rosa Damascena Flower Extract, Ferulic Acid, 5 layer Hyaluronic Acid

Full ingredient List:
Water, Rosa Damascena Flower Water, Glycerin, Arbutin, Propanediol, Niacinamide, Betaine, Rosa Damascena Flower Oil, Sodium DNA, Rosa Damascena Flower Extract, 3-O-Ethyl Ascorbic Acid, Ferulic Acid, Trehalose, Arginine, Allantoin, Panthenol, Xanthan Gum, Sodium Hyaluronate Crosspolymer, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Houttuynia Cordata Extract, Castanea Crenata (Chestnut) Shell Extract, Salix Alba (Willow) Bark Extract, Centella Asiatica Extract, Butylene Glycol, Sophora Flavescens Root Extract, Hippophae Rhamnoides Fruit Extract, Carbomer, 1,2-Hexanediol, Calendula Officinalis Flower Extract, Scutellaria Baicalensis Root Extract, Paeonia Suffruticosa Root Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Citronellol, Geraniol

Brightening Serum

$42.61 USD

Overall rating: 4.75 / 5 from 12 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

This is the serum I

"This is the serum I recommend to everyone. ISOI's Bulgarian rose oil smells incredible and does real work on skin tone. Ferulic acid stabilizes the vitamin C beautifully. Skin looks lit from within."

— Penelope U. (5/5)

My hyperpigmentation has improved so

"My hyperpigmentation has improved so much over 4 weeks. The vitamin C derivatives are effective but gentle ? no tingling or irritation. Niacinamide adds a brightness boost and helps with pores too."

— Quinn V. (5/5)

Two weeks in and my

"Two weeks in and my dark spots are noticeably lighter. Bulgarian rose oil + arbutin + niacinamide is the brightening trifecta I've been searching for. Skin looks more even and dewy ?"

— Olivia T. (5/5)

I was skeptical about another

"I was skeptical about another brightening serum but this one genuinely stands out. Bulgarian rose oil gives a warmth and glow that other serums miss. Skin looks rosy and healthy."

— Yara D. (4/5)

Really love the texture ?

"Really love the texture ? bouncy and hydrating but fast-absorbing. Arbutin + rose oil combo is fading my post-acne marks and the hydration from 148% moisture improvement claim feels real ??"

— Rose W. (5/5)

The bottle is beautiful and

"The bottle is beautiful and the serum itself feels so luxurious. Rose PDRN + arbutin is a brilliant combo for brightening that also supports skin regeneration. Results in 2 weeks ??"

— Wendy B. (5/5)

Niacinamide + ferulic acid +

"Niacinamide + ferulic acid + vitamin C is a dermatologist-approved combo and this formula delivers it gently. My dull, uneven skin has genuinely transformed with consistent use."

— Xena C. (5/5)

I layer this under my

"I layer this under my moisturizer and SPF and it's changed my whole routine. The skin just looks healthier ? more luminous, more even. Bulgarian rose oil is doing what it promises."

— Vera A. (4/5)

Applied morning and night as

"Applied morning and night as directed and noticed visible improvement in skin clarity by week 2. Niacinamide is smoothing texture while arbutin targets specific dark spots. Smart formula."

— Uma Z. (5/5)

Fast-absorbing and non-sticky which is

"Fast-absorbing and non-sticky which is essential for me as a base under makeup. Arbutin is tackling my sun spots and niacinamide keeps skin smooth. Exactly what I needed."

— Zoe E. (5/5)

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Discover more in our FAQ

How long does it take to process an order?

Orders are processed and shipped within 1–2 business days. Once your order has been shipped, tracking information will be sent to you via email.

Do you ship internationally?

Yes, We offer express international shipping to the following countries. You can check the list of countries we currently ship to internationally here!

What is your return policy?

We accept returns within 30 days of delivery, provided the items are unused and in their original condition. For detailed instructions, please refer to our return policy or contact our customer service team.

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Brightening Serum

Brightening Serum

Brightening serum for clear, even-toned skin.

Skin Type & Concerns

How To Use

Ingredients

Brightening Serum

AI Generated Review Summary

Summary topics

Review highlights

Reviews

This is the serum I

My hyperpigmentation has improved so

Two weeks in and my

I was skeptical about another

Really love the texture ?

The bottle is beautiful and

Niacinamide + ferulic acid +

I layer this under my

Applied morning and night as

Fast-absorbing and non-sticky which is

Q&A

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Brightening Serum

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