Glutathione Serum

Glutathione Serum

"Amazing"
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Rated 4.8/5:
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Voted Brightening Serum of the Year!

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    Frequently Asked Questions

    I have sensitive skin, is this safe for me?

    Our serum is formulated to be safe for all skin types, including sensitive skin. It's free from harsh chemicals and fragrances, making it gentle yet effective.

    How fast can I see results?

    Many users report improved skin within 2–3 weeks of consistent use. Results may vary, but with regular application, benefits improve over time.

    How long is shipping?

    Your order is processed in a speedy 1-2 days, and will take 5-8 days to arrive on your doorstep! Fast shipping is one of our main priorities here at Berletti.

    How often should I use it?

    For best results, apply the cream twice daily—once in the morning and once at night—on clean, dry skin.

    Can I use the serum with other skincare products?

    Absolutely! This serum works well with your existing skincare routine and can be layered with other products like moisturizers and sunscreens.

    Is it free from harmful ingredients?

    Yes, our formula is free from parabens, sulfates, phthalates, and artificial fragrances. It’s dermatologist-tested and safe for everyday use.

    What if I want a refund?

    If for any reason you are not happy with your product, you can send it back to us for a FULL refund anytime! Just shoot us an email at berlettiteam@gmail.com.

    Less Than 0.2% of Customers Request a Refund!

    We're happy to give you a full refund if you're unhappy, but we're sure you love it and come back for more. Voted best brightening serum for a reason!

    After Just 7 Days:

    96%

    Noticed significantly brighter, clearer, and better skin.

    97%

    Noticed hyperpigmentation has completely disappeared.

    99%

    Noticed a significant boost in their overall confidence.

    Results based on a recent customer survey.

    Cocktail For The Skin

    Authentic Korean skincare, straight out of Seoul. Our Glutathione Serum is formulated by top skin experts and dermatologists. Get that Korean glass skin you dream of.

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    Our customers tell it better than we do!

    4.8

    / 5

    (based off 6500+ reviews)

    dark patches GONE!!

    After years of hormonal dark patches, this serum restored my natural tone in just weeks! Friends keep asking what I'm using. Worth every penny for my confidence! After years of hormonal dark patches, this serum restored my natural tone in just weeks! Friends keep asking what I'm using. Worth every penny for my confidence! After years of hormonal dark patches, this serum restored my natural tone in just weeks! Friends keep asking what I'm using. Worth every penny for my confidence!

    Jackie D.

    just wow

    Growing up in India left me with uneven skin from sun exposure. This serum faded my dark spots when nothing else worked. Finally comfortable in my own skin! Growing up in India left me with uneven skin from sun exposure. This serum faded my dark spots when nothing else worked. Finally comfortable in my own skin! Growing up in India left me with uneven skin from sun exposure. This serum faded my dark spots when nothing else worked. Finally comfortable in my own skin!

    Priya F.

    husband noticed!

    Spent hundreds on department store brands for age spots with no results. This serum worked in just one week! My husband noticed without me saying anything! Spent hundreds on department store brands for age spots with no results. This serum worked in just one week! My husband noticed without me saying anything! Spent hundreds on department store brands for age spots with no results. This serum worked in just one week! My husband noticed without me saying anything!

    Jennifer L.

    INSANE serum

    Within a week, this serum has faded marks I thought would be permanent. It doesn't irritate my sensitive skin either, which is a miracle! Best product out there. Within a week, this serum has faded marks I thought would be permanent. It doesn't irritate my sensitive skin either, which is a miracle! Best product out there. Within a week, this serum has faded marks I thought would be permanent. It doesn't irritate my sensitive skin either, which is a miracle! Best product out there.

    Michelle A.

    saved confidence

    As an woman of color, post-acne marks showed prominently on my skin. This glutathione serum lightened them in days. Now I go makeup-free with confidence! As an woman of color, post-acne marks showed prominently on my skin. This glutathione serum lightened them in days. Now I go makeup-free with confidence! As an woman of color, post-acne marks showed prominently on my skin. This glutathione serum lightened them in days. Now I go makeup-free with confidence!

    Deepa C.

    Loved By 400k+

    Our serum has gone viral for a reason. Influencers and celebs are LOVING the effects that Glutathione has on their skin. Secure your serum before we sell out!

    Not All Serums Are Created Equal

    Our Serum

    Other Serums

    Erases Melasma & Hyperpigmentation

    Fades Dark Spots

    Dermatologist Recommended

    Sensitive Skin Safe

    Layers Under Makeup & More

    Not Sticky

    Works With Any Skincare Routine

    Real Reviews

    worth reading.

    • FAST Results!

      I've always been doubtful about skincare promises, especially for hyperpigmentation. My friend recommended this serum, and I reluctantly tried it. By day 7, I noticed my acne scars fading! My morning routine is simpler now - just this serum and sunscreen. The texture absorbs quickly without any greasy feeling. Even my husband commented on how radiant my skin looks lately. This skeptic is now a lifetime customer!

      Priya Singh

    • Acne Gone

      I've struggled with adult acne and the dark marks it leaves behind. This glutathione serum has been a game-changer for my complexion. The spots have faded dramatically, and my skin tone is more uniform than it's been in decades. It doesn't cause breakouts or irritation like other brightening products I've tried. Finally found something that works!

      Katie Wilson

    • Melasma Magic LOL

      Pregnancy left my face with melasma that made me so self-conscious. I've been using this glutathione serum for a week, and the dark patches have faded dramatically! It doesn't have any fragrance, which I appreciate with my sensitive skin. The difference in my before and after photos is incredible. I'm recommending it to all my mommy friends struggling with the same issue. Truly worth every penny!

      Jenny Jackson

    • Love This!

      After years of covering dark spots with heavy foundation, I found this glutathione serum. A week of consistent use and my hyperpigmentation has faded significantly! The formula is lightweight and absorbs quickly. My morning routine is shorter now because I need less makeup. Already ordered a second bottle before I run out!

      Maria Rodriguez

    • Holy Grail!

      After menopause hit, my skin developed dark patches I couldn't hide with makeup. One week using this glutathione serum and the difference is remarkable! My skin tone is evening out, and those stubborn spots are noticeably lighter. I've tried everything from expensive creams to dermatologist treatments, but nothing worked like this. Finally found my holy grail product!

      Catherine Vargas