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Vitamin Illuminating Serum Double Pack | Niacinamide 4% & TXA

Vitamin Illuminating Serum Double Pack | Niacinamide 4% & TXA

4 Glow Benefits

Why Your Skin Will Love Cougex

Dual Brightening Power

Niacinamide 4% + TXA helps brighten dull-looking skin and reduce the look of dark spots.

💧

Lightweight, No-Sticky Glow

Watery serum texture absorbs quickly, leaving skin fresh, smooth, and makeup-ready.

Brightens + Hydrates

Hydration support keeps skin looking plump, soft, and naturally radiant while brightening.

Targeted Spot Care

Use on cheeks, chin, forehead, neck, and hands for a clearer, more even-looking glow.

 (6898 Reviews)
Regular price $37.98
Regular price $37.98 Sale price
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Vitamin Illuminating Serum Double Pack | Niacinamide 4% & TXA

Vitamin Illuminating Serum Double Pack | Niacinamide 4% & TXA

Regular price $37.98
Regular price $37.98 Sale price
SAVE Sold out
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COUGEX Glow Filter Serum
Dark spot appearance · Dullness · Uneven-looking tone
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Vitamin Illuminating Serum

Reveal Your Clear,Even Glow

A brightening daily serum designed to improve the look of dark spots, post-acne marks, sun dullness and uneven tone while leaving skin fresh, hydrated and makeup-ready.

1 Niacinamide 4% + TXA
2 Acerola Vitamin C Glow
3 Hyaluronic Acid Hydration
4 Lightweight, non-sticky finish
30ml Full-size daily glow serum
AM & PM Easy to layer into routine
No sticky feel Comfortable under sunscreen
COUGEX Vitamin Illuminating Serum hero
Clearer-looking glow starts here. Helps brighten dull-looking skin and soften the appearance of discoloration with a lightweight serum texture.
Why skin looks dull with dark spots and uneven tone
Skin concern

Why your skin can look dull before makeup

Dark spots, leftover blemish marks, sun exposure and uneven texture can make the entire face look tired, even when skin is hydrated. The goal is not to cover everything with thicker foundation. The goal is to make bare skin look clearer, brighter and more even.

Dark spot appearance Targets the look of stubborn discoloration on cheeks, chin and forehead.
Uneven-looking tone Helps skin look more balanced, fresh and visually cleaner.
Tired-looking skin Brings back a healthy-looking glow when skin appears flat or dull.
Makeup looks smoother Lightweight hydration helps the skin surface look softer under base makeup.
Before / After story

A visible glow difference people can actually notice

This section is designed to create instant purchase desire: show the real problem, then show the brighter-looking result. Use the generated comparison image here to make visitors immediately understand what the serum is for.

Before

Dull-looking tone, visible marks, uneven areas and a tired complexion that makes makeup look less clean.

After

Skin appears brighter, smoother, more hydrated and more even-looking with consistent daily care.

*Results may vary. Consistent use and daily sunscreen are recommended for best-looking results.

Before and after glow difference
3 step brightening care for dark spots
3-step toning care

Target dullness at every stage of the spot cycle

A strong skincare landing page should explain why the formula feels different. This serum is positioned as a multi-step brightening routine that cares for potential dullness, emerging discoloration and visible dark spots.

1
Potential dark spots Helps support the look of clearer skin before uneven tone becomes more noticeable.
2
Emerging discoloration Works on areas that appear dull, yellowish, tired or uneven.
3
Visible marks Helps reduce the look of dark spots, post-acne marks and sun-related dullness.
Brightening core

Niacinamide 4% + TXA for a cleaner-looking glow

The main conversion hook is simple: this is not just a basic glow serum. It combines brightening-focused ingredients with hydration support so skin looks clearer, softer and more luminous without a heavy finish.

Niacinamide 4%

Helps improve the look of dullness, uneven tone and visible skin clarity while supporting a smoother-looking complexion.

TXA

Helps reduce the look of discoloration and supports a brighter, more balanced appearance over time.

Arbutin

A popular tone-care ingredient used in brightening routines for the appearance of dark spots and uneven-looking areas.

Daily glow support

Designed for consistent use, so skin can look refreshed, hydrated and more radiant with every routine.

Niacinamide and TXA serum actives
Acerola vitamin C glow serum
Fresh vitamin glow

Acerola Vitamin C for dull, tired-looking skin

Acerola-inspired Vitamin C glow gives the page a fresh, fruit-based, premium skincare feel. It visually connects the yellow serum color with bright, juicy, healthy-looking radiance.

Brighter-looking skin Fresh morning glow Less tired appearance Radiant finish
For daily dullness Perfect for skin that looks flat, yellowish or tired after long days, stress or lack of sleep.
For glow seekers Gives the page a clear emotional promise: fresher skin, cleaner makeup, more confidence.
Hydration barrier support

Brightening care that still feels soft and comfortable

Many brightening products can feel drying or harsh. This page highlights the more comfortable angle: a serum that brightens the look of skin while helping it feel hydrated, smooth and supported.

Hyaluronic Acid Attracts hydration so skin looks plumper, fresher and less flat.
Ceramide Support Supports the skin barrier so your brightening routine feels more balanced.
Soft glow finish Leaves the skin looking healthy and dewy, not greasy or heavy.
Daily comfort Easy to use morning and night as part of a consistent glow routine.
Hydration and skin barrier serum support
Lightweight fast absorbing serum texture
Texture sells

Lightweight, fast-absorbing, and made for real routines

Texture is one of the strongest buying reasons for skincare. This serum is positioned as watery, breathable and easy to layer — ideal for shoppers who hate sticky, heavy, oily formulas.

💧
Watery texture
Quick absorption
Makeup-friendly
Multi-area use

Use it on face, neck, hands and targeted dark-looking areas

A single bottle can become a complete glow routine. Use it on areas where discoloration appears most noticeable: cheeks, chin, forehead, neck and hands.

Cheeks Chin marks Forehead dullness Neck tone Hands
Spot focus Apply directly to the areas that visually bother you most.
All-over glow Spread a thin layer across the face for a more even-looking finish.
Face and targeted spot care areas
How to use Cougex Vitamin Illuminating Serum
Simple routine

How to use for your best-looking glow

Keep the routine simple so customers feel confident buying immediately. Cleanse, apply, pat in, and stay consistent.

01
Apply after cleansing Use after cleanser and toner, before cream or sunscreen.
02
Pat into skin Use 2–3 drops on the face, then add a little extra to visible dark-looking areas.
03
Use AM & PM In the morning, always finish with sunscreen to help protect your glow progress.
1 Bottle Start your daily glow routine and test the texture.
2 Bottles Best for consistent face, neck and spot-care use.
3 Bottles Ideal for full routine backup or gifting.
★★★★★

“The texture is super light. I use it before sunscreen and my skin looks fresher without feeling sticky.”

— Emily R.
★★★★★

“My makeup sits better now because my skin looks more hydrated and even before I start applying base.”

— Madison K.
★★★★★

“I like using it on my cheeks and old-looking marks. It gives my skin a cleaner glow over time.”

— Sarah L.
FAQ

Before you start your glow routine

How long does it take to see results?

Skin appearance varies by person. For best-looking results, use consistently and pair morning use with sunscreen. Many shoppers buy more than one bottle so they can stay consistent.

Can I use it in the morning?

Yes. Apply a thin layer after cleansing and toner, then follow with moisturizer and sunscreen. Sunscreen is important when caring for dullness and dark spot appearance.

Will it feel sticky under makeup?

The formula is positioned as lightweight and fast-absorbing, making it easy to layer under sunscreen and base makeup.

Can I use it on my neck or hands?

Yes, it can be used on targeted areas such as neck, hands, cheeks, chin and forehead. Avoid broken skin and the eye area.

Is it suitable for sensitive skin?

It is designed for daily brightening care, but sensitive skin should patch test first and introduce it slowly.

COUGEX Glow Serum Brighten dull-looking skin SHOP NOW
  • ★★★★★

    ''

    I've struggled with dark spots from acne for years. Every vitamin C serum, every brightening mask — nothing worked. This cream actually faded my spots in about a month. I can finally go out without heavy concealer. I'm never switching.

    Victoria S.

  • ★★★★★

    ''

    I'm a Black woman and finding products that actually work on hyperpigmentation without leaving a white cast or irritating my skin has been a nightmare. This cream does neither. My dark marks from old breakouts are fading fast and my skin feels so smooth. Finally something that works for melanin-rich skin.

    Latisha H.

  • ★★★★★

    ''

    Bought this for the stubborn dark marks on my chin and jawline. The texture is beautiful — lightweight, sinks in immediately, no sticky feeling. After 3 weeks my marks are visibly lighter. The 7% arbutin concentration is no joke. This is the real deal.

    Jackie P.

  • ★★★★★

    ''

    My husband stole this from me. He had dark spots on his forehead from years of working outside and said nothing ever worked. Two weeks in he asked me to order him his own. Now we both use it. His spots are lighter than mine and I'm salty about it lol.

    Duri M.

  • ★★★★★

    ''

    I have extremely sensitive, rosacea-prone skin and most brightening products burn my face. This one? Zero irritation. My skin feels calm and hydrated, and the sun spots on my forehead are fading. Shocked that something this effective is this gentle.

    Alice L.

  • ★★★★★

    ''

    My melasma has been a nightmare since pregnancy. I've spent hundreds on laser treatments and prescription creams. This is the first topical that actually made a visible difference. The patches on my cheeks are significantly lighter after 5 weeks. My derm even noticed.

    Jocelyn N.

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