CULT FAVE
No. 1 Serum - Vitamin C
now priced at
$130
1737 reviews
4.3 out of 5 stars in 1737 reviews
The Zoe Report Best Vitamin C
Glamour Best Brightening Serum
Size: 30ml / 1.0 fl oz
- 15% Off Every Subscription Order
- Free Shipping on every Subscription Order
- VIP Access to Sales and New Launches
- Free gifts with every recurring subscription†
1
The MUTHA No. 1 Serum is a clinically tested, do-it-all vitamin C serum that creates healthier skin with ingredients you can trust. Its advanced, potent formula features MUTHALOAD® Core Technology, which includes four molecular weights of Hyaluronic Acid, Niacinamide, and Rice Kefiran.
Our bio-fermented blend allows its clinically-proven, effective ingredients to be absorbed easily and enhance results. TETRAHEXYLDECYL ASCORBATE (THD) — a stabilized form of Vitamin C shown to be 50x more effective than L-Ascorbic Acid — helps reduce pigmentation and increase collagen production. Hyaluronic acid and niacinamide work to hydrate, balance, and protect the skin barrier.
The No. 1 Serum is your complete protecting, hydrating, and repairing treatment.
97% Natural Origin. Dermatologist and Allergy tested. For all skin types, including sensitive skin. Never tested on animals.
†Free surprise gifts may be periodically offered at MUTHA’s discretion and based on availability after three consecutive subscription cycles (three recurring orders with continuous service)
Pairs well with
Up All Night Eye Cream
No. 1 Serum - Vitamin C
now priced at
$1301737 reviews
4.3 out of 5 stars in 1737 reviews
The Zoe Report Best Vitamin C
Glamour Best Brightening Serum
Size: 30ml / 1.0 fl oz
- 15% Off Every Subscription Order
- Free Shipping on every Subscription Order
- VIP Access to Sales and New Launches
- Free gifts with every recurring subscription†
1
The MUTHA No. 1 Serum is a clinically tested, do-it-all vitamin C serum that creates healthier skin with ingredients you can trust. Its advanced, potent formula features MUTHALOAD® Core Technology, which includes four molecular weights of Hyaluronic Acid, Niacinamide, and Rice Kefiran.
Our bio-fermented blend allows its clinically-proven, effective ingredients to be absorbed easily and enhance results. TETRAHEXYLDECYL ASCORBATE (THD) — a stabilized form of Vitamin C shown to be 50x more effective than L-Ascorbic Acid — helps reduce pigmentation and increase collagen production. Hyaluronic acid and niacinamide work to hydrate, balance, and protect the skin barrier.
The No. 1 Serum is your complete protecting, hydrating, and repairing treatment.
97% Natural Origin. Dermatologist and Allergy tested. For all skin types, including sensitive skin. Never tested on animals.
†Free surprise gifts may be periodically offered at MUTHA’s discretion and based on availability after three consecutive subscription cycles (three recurring orders with continuous service)
Pairs well with
Up All Night Eye Cream
Real People,
Real Results
Real Results
*based on a consumer panels conducted on 33 subjects over an 8-week period
Real People, Real Results
*based on a consumer panels conducted on 33 subjects over an 8-week period
How to Use
Apply 1-2 pumps of the No. 1 Serum in the morning and evening to dry, clean skin on the face, neck, and décolletage. Use the No. 1 Serum by itself or follow with a moisturizer like the MUTHA Face Oil or Cream.
How to Use
Apply 1-2 pumps of the No. 1 Serum in the morning and evening to dry, clean skin on the face, neck, and décolletage. Use the No. 1 Serum by itself or follow with a moisturizer like the MUTHA Face Oil or Cream.
GET PUMPED
We’re always looking to make things better, so we’ve upgraded the packaging for our full-sized No. 1 Serum to a sealed, easy-to-use pump.
VITAMIN C PRESERVATION
We use THD, a stabilized form of Vitamin C, and limit added preservatives. This pump helps preserve the Vitamin C even longer and protect it from oxidation.
THE PERFECT AMOUNT
The No.1 Serum is packed with rich seed oils and hyaluronic acid—a little goes a long way. This pump dispenses the perfect amount.
STAYS FRESHER, LONGER
Larger product sizes take longer to use, so reducing air exposure over time is more important. Using a pump rather than a dropper helps keep your Serum fresh.
GET PUMPED
We’re always looking to make things better, so we’ve upgraded the packaging for our full-sized No. 1 Serum to a sealed, easy-to-use pump.
VITAMIN C PRESERVATION
We use THD, a stabilized form of Vitamin C, and limit added preservatives. This pump helps preserve the Vitamin C even longer and protect it from oxidation.
THE PERFECT AMOUNT
The No.1 Serum is packed with rich seed oils and hyaluronic acid—a little goes a long way. This pump dispenses the perfect amount.
STAYS FRESHER, LONGER
Larger product sizes take longer to use, so reducing air exposure over time is more important. Using a pump rather than a dropper helps keep your Serum fresh.
REASONS TO LOVE
REASONS TO LOVE
DO IT ALL, LIKE YOUR MUTHA
It's a serum that does it all, loaded with clinically proven, bio-fermented ingredients that nourish and soothe the skin. It's made with gentle but effective actives designed to provide antioxidant benefits and treat imperfections like dark spots and fine lines. Simplify your routine with a serum that hydrates, treats, and protects in one step.
STABLE FORM OF VITAMIN C
The No. 1 Serum is formulated with a stabilized form of Vitamin C — Tetrahexyldecyl Ascorbate (THD) — that has been shown to 50x more effective than L-Ascorbic Acid, a widely popular Vitamin C option. This much more stable form of Vitamin C helps with preserving the potency of associated benefits including the reduction of dark spots and antioxidant properties.
4x THE HYALURONIC ACID
The No. 1 Serum contains four molecular weights of Hyaluronic Acid, while most popular serums only have two! This superstar ingredient deeply hydrates and plumps the skin, and helps strengthen the skin barrier against damage and transepidermal water loss.
MUTHALOADED WITH BENEFITS
MUTHALOAD Core Technology is an advanced formula designed to nourish, balance, soothe and protect the skin barrier with Hyaluronic Acid, Niacinamide, Rice Peptides, and Rice Kefiran.
Clinically Proven Results
100%
saw significant reduction in fine lines and wrinkles after 8 weeks of use*
100%
showed significant improvement in skin firmness and elasticity after 4 weeks of use*
79%
showed improvement in dark spots and hyperpigmentation after 8 weeks of use*
100%
agreed the look of pores and blemishes are reduced
* based on clinical study on 33 subjects over an 8-week period via expert grading and instrumentation
Clinically Proven Results
100%
saw significant reduction in fine lines and wrinkles after 8 weeks of use*
100%
showed significant improvement in skin firmness and elasticity after 4 weeks of use*
79%
showed improvement in dark spots and hyperpigmentation after 8 weeks of use*
100%
agreed the look of pores and blemishes are reduced
* based on clinical study on 33 subjects over an 8-week period via expert grading and instrumentation
Hear from our
No. 1 fans
No. 1 fans
Hear from our No. 1 fans
PRESS
VOGUE
Hydrate, Lift, and Brighten Your Complexion With 2023’s Best Face Serums
"The MUTHA No.1 serum is the perfect combination of hydrators, actives, antioxidants, and skin nourishers to leave skin conditioned, balanced, restored, and protected!"
HARPER'S BAZAAR
Best Newcomer
"Sun spots, pigmentation and dryness don’t stand a chance against this antioxidant-packed serum."
THE ZOE REPORT
The 26 Best New Skin Care Products Of 2021
“It leaves my skin so freakin’ smooth, like soft, plump baby skin...For anyone looking to use one serum morning and night, this is number one. So happy to add it to my skin care lineup."
VOGUE
2023’s Best Face Serums for Your Skin, According to Experts
"The MUTHA No.1 serum is the perfect combination of hydrators, actives, antioxidants, and skin nourishers to leave skin conditioned, balanced, restored and protected!"
HARPER'S BAZAAR
The Harper's Bazaar Best Of Beauty Awards 2022 winners
"Best Newcomer: Mutha No. 1 Serum Sun spots, pigmentation and dryness don’t stand a chance against this antioxidant-packed serum."
The Zoe Report
The 26 Best New Skin Care Products Of 2021
"It leaves my skin so freakin’ smooth, like soft, plump baby skin...For anyone looking to use one serum morning and night, this is number one. So happy to add it to my skin care lineup."
FAQS
FAQS
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