The skin brightening serums aisle at any skincare store is exhausting. Every other bottle promises glowing, flawless, filter-skin in seven days, and most of them either irritate your skin, do absolutely nothing, or smell like a chemistry lab. So when I picked up the Foxtale 10% Gluta – Vit C Advanced Brightening Serum, I was cautiously optimistic. Spoiler: it earned a permanent spot in my morning routine, and here’s exactly why!
What Even Is Glutathione, and Why Does Your Skin Brightening Serum Need It?
If you’ve heard of Vitamin C serums but are new to Glutathione, let me catch you up. Glutathione is a powerful antioxidant naturally found in your cells. It fights oxidative stress, aids in cellular repair, and is one of the most effective ingredients for fading stubborn pigmentation and melasma. On its own, it’s impressive. But pair it with Vitamin C? That’s where things get supercharged.
The Foxtale Glutathione Serum combines a stable form of Vitamin C (Ethyl Ascorbic Acid 10%) with Glutathione. The two ingredients work in tandem: Vitamin C inhibits melanin production while Glutathione supports cellular repair and regeneration from within. Together, they double down on dullness, dark spots, uneven tone, and that general “tired skin” look we all know too well. The formula also packs in Aquaporin Boosters for deep hydration, Allantoin for soothing and barrier support, Squalane for lightweight nourishment, Betaine (for cell protection and locking in moisture), and Tocopherol (Vitamin E) for antioxidant backup. This isn’t just a one-ingredient skin brightening serum – it’s a well-thought-out formula with a team of ingredients that work great together!

First Impressions: A Light-Weight Texture Meant For All Skin Types
The moment I pumped this serum out and felt it between my fingers, I knew we were off to a good start. It has a gel-cream texture — not runny like water serums, not thick like the older, heavier Vitamin C formulations. It sits right in that sweet spot of substantial-but-light. Two to three drops is genuinely enough for your face and neck.
The cherry on top? It has a subtle cooling effect on application. In the middle of an Indian summer, when your skin is already doing too much, having something that cools down on contact feels nothing short of luxurious. Plus, it absorbs quickly and leaves zero stickiness behind. Just this fresh, plump, slightly dewy feeling that I genuinely look forward to every morning.
How to Use It
Apply 2–3 drops to clean, dry skin every morning (and you can use it at night too). Gently press and massage it into your face and neck until absorbed, then follow up with your moisturiser and sunscreen. If you’re using a separate Vitamin C serum already, the Gluta Vit C can either replace it or complement it at different times of day. But if you’re starting out, this serum alone covers a lot of ground.

Which Skin Type Is This Skin Brightening Serum Most Suited For?
This is where this serum surprises you. Most brightening serums come with a caveat — “not ideal for sensitive skin” or “avoid if acne-prone” or “may cause initial tingling.” Foxtale’s formula is designed for all skin types – no disclaimers needed.
Dry skin will love the hydration boost from the Glycerin, Betaine, and Squalane in the formula. It layers beautifully under moisturiser and gives the skin that plump, bouncy feel without any dryness or tightness.
Oily and combination skin will appreciate the lightweight, non-comedogenic gel-cream base. It never feels heavy or suffocating, and it doesn’t trigger breakouts. I’ve been using it through weeks of sweaty, humid mornings, and my skin has stayed clear.
Sensitive skin gets Allantoin and a non-irritating, stable form of Vitamin C that doesn’t cause the redness or tingling that L-Ascorbic Acid (the raw, potent form) sometimes does.
And if you’ve been on the fence about Glutathione — it’s a great entry point. The concentration is effective but balanced, so there’s no sudden purging or reaction if this is your first time using the ingredient.
The Results: How This Brightening Serum Helped My Oily Skin
By day three (and I know that sounds like a stretch, but I genuinely noticed this) my skin looked brighter. The kind of healthy glow that looks like you are sleeping well and eating clean.
With continued use over a few weeks, the dark spots from old acne marks started to visibly fade. The overall tone looked more even, less patchy, and the redness from occasional breakouts seemed to calm down faster than usual. My skin also stayed consistently hydrated through the day, which was impressive for a serum this lightweight.
And the fact that it works beautifully as a base layer is the cherry on top. Makeup sits smoother over it, and on days I skip foundation altogether, this serum + SPF is genuinely all I need to look put-together.

Final Thoughts: Is A Gluta+Vit C Serum Worth Adding to Your Routine?
If your skin concerns are any combination of dullness, uneven tone, dark spots, dehydration, or just wanting a general glow upgrade — yes, this is absolutely worth it. The Foxtale Gluta-Vit C Serum works for all skin types, absorbs in seconds, feels incredible in summer heat, and delivers visible results within days. It’s one of those rare formulations that doesn’t ask you to compromise — no irritation, no greasiness, no complicated routines.
Would I repurchase? 100%.
Have you tried mixing Glutathione and Vitamin C in your routine? Drop your experience in the comments — I’d love to hear how it’s worked for you!
Mrinalini
Mrinalini is a beauty blogger with over 7 years of experience in reviewing skincare, makeup, and wellness products. Her professional experience in the biomedical space plus her keen interest in testing products spanning decades gives her the upper edge when it comes to reviewing new beauty products, particularly for oily, acne-prone, Indian skin.