Vital Skin-Strengthening Hyaluronic Acid Super Serum

All Skin Types, including Sensitive Skin

A Hyaluronic Acid serum with an Adaptogenic complex that strengthens skin and boosts radiance.

Vital Skin-Strengthening Hyaluronic Acid Super Serum is rated 4.4 out of 5 by 643.

Vital Skin-Strengthening Hyaluronic Acid Super Serum

A Hyaluronic Acid serum with an Adaptogenic complex that strengthens skin and boosts radiance.

$81.00

or 4 installments of $20.25 by

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1.0 fl. oz. Bottle

1.7 fl. oz. Bottle

3.4 fl. oz. Bottle

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What It Is

Our Hyaluronic Acid serum strengthens skin to help resist signs of aging, while boosting radiance and smoothing fine lines. Formulated with 11kDa Hyaluronic Acid — our smallest form of Hyaluronic Acid, which penetrates 8 skin surface layers deep** — and an Adaptogenic Herbal Complex, our serum neutralizes the effects of external skin-aging stressors for youthful, radiant skin.

*Based on a clinical study of 25 panelists measuring the penetration of the full formula via tape stripping.

What It’s Good For

Helps correct visible signs of aging, which can be caused by skin stressors including pollution, stress and sun exposure
Clinically shown to improve skin texture by 41%*
Clinically demonstrated to boost radiance by 29% and improve resilience by 38% for glowing, healthy-looking skin*
Clinically demonstrated to visibly reduce fine lines by 27%*
Clinically demonstrated* to double skin’s strength**
Absorbs easily with a lightweight texture
For all skin types, including sensitive skin

*Based on a 4-week clinical study on 58 subjects tested in urban and polluted environments.

**Based on Strength Index = Composite, average score of clinically graded parameters after using the product for 4 weeks vs one week of use.

Key Ingredients

11kDa HYALURONIC ACID

Our smallest molecular size of Hyaluronic Acid, this micronized ingredient penetrates to fortify skin within its deepest surface layers.* By delivering skin-strengthening hydration to skin’s most vulnerable layer, 11kDa Hyaluronic Acid helps better retain moisture for improved resiliency, suppleness and bounce.
*Stratum corneum

ADAPTOGENIC HERBAL COMPLEX

Our Adaptogenic Herbal Complex is a proprietary blend of adaptogens — Red Ginseng Root, Holy Basil and Schisandra Berry — traditionally used in Traditional Chinese, Korean and Ayurvedic Medicine. Within our formula, these adaptogens work synergistically to defend skin from stressors while renewing and resurfacing skin’s texture for a smooth, radiant appearance.

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How to Use

Apply our Hyaluronic Acid serum onto cleansed face and neck, morning and night
Can also be used before another serum
Then apply a daily moisturizer
Avoid contact with eyes
If contact occurs, rinse thoroughly with water

Did You Know?

Every day your skin comes into contact with stressors that can all lead to premature skin aging. UV exposure, pollution and extreme temperatures along with tobacco, stress, lack of sleep and nutrition can all have negative impacts on your skin and cause dullness, dryness, dehydration, fine lines and other signs of aging. Our formula is clinically demonstrated^* to double skin’s strength^** to help protect against the stress-related signs of aging to help keep your skin more radiant and healthy-looking.

*Based on a 4-week clinical study on 58 subjects tested in urban and polluted environments.

**Based on Strength Index = Composite, average score of clinically graded parameters after using the product for 4 weeks vs one week of use.

Targeted Facial Serums For Your Skin Concerns

For lines and wrinkles to dry skin, find facial serums for your skin concern. **LEARN MORE**

Complete Your Routine

Discover efficacious formulas to upgrade your routine.

Step 1

Vital Skin-Strengthening Hyaluronic Acid Super Serum

A Hyaluronic Acid serum with an Adaptogenic complex that strengthens skin and boosts radiance.

$52.00

Step 2

Midnight Recovery Concentrate Face Oil

A 98% natural moisturizing face oil that visibly restores skin while you sleep.

$52.00

Midnight Recovery Concentrate Face Oil

A 98% natural moisturizing face oil that visibly restores skin while you sleep.

$52.00

Step 2

Avocado Eye Cream

A hydrating eye cream that de-puffs and brightens under eyes. Fragrance-free

$50.00

Avocado Eye Cream

A hydrating eye cream that de-puffs and brightens under eyes. Fragrance-free

$50.00

Step 3

Ultra Facial Cream

Our best face cream uniquely formulated for all skin types. Fragrance-free

$32.00

Ultra Facial Cream

Our best face cream uniquely formulated for all skin types. Fragrance-free

$32.00

Future Made Better

True to our founding family’s mission, we strive to improve the quality of the communities we serve by reducing our
environmental impact, formulating responsibly, and supporting charitable causes. This formula is made with:

Responsible Formulation

Commitment to Recycling

Learn more

Rated 5 out of 5 by Glenwood from Excellent Product!!! I barely change my serum, however, I found this product the first time at a store, and the staff was very nice and explained the description. I started using this product 3 months ago, I just ordered it again because I felt the difference from other products. It makes my skin smooth and moist. I would highly recommend this. You should try it!!

Date published: 2021-04-02

Rated 5 out of 5 by newtothesouth from I noticed a positive difference in the first week My skin looks noticeably less dry and clearer. I use it under morning and night under moisturizers and sunscreen.

Date published: 2021-03-26

Rated 5 out of 5 by SEW4 from Makes your skin glow! This is one of my favorite products due to the results along with the feeling on your face.

Date published: 2021-02-25

Rated 5 out of 5 by JBK808 from Can I apply before I workout? Can I apply this serum in the morning 2-3 hours before I work out and sweat a lot? Or is it going to be a waste? Also Since I’ll be working out In the day time. I’m thinking of using this serum at night only, is that okay?

Date published: 2021-02-05

Rated 5 out of 5 by co321 from Amazing product This seem has made my skin super smooth and soft. I have combination skin that's dry especially around my jawline. Using this for a couple weeks, the dry areas are completely soft and any bits of redness are gone. I've gotten so many compliments on my skin since starting to use the product. I pair it with the Ultra Facial Moisturizer, which I already had.

Date published: 2021-01-25

Rated 5 out of 5 by Corine from Serum Junkie This is seriously the best serum ever. I balance it with my daily routine and can’t believe how well it helps my skin. ESPECIALLY in this mask on environment. It keeps my skin soft. Like other reviewers said you almost feel you don’t need your day cream. I love the smell. I love Kiel’s vitamin C journey and this doesn’t disappoint on that front either. Definitely a must try.

Date published: 2021-01-23

Rated 3 out of 5 by Sdkavz from Drying I wanted to love this serum but found it too drying. I switched back to the gly serum.

Date published: 2021-01-15

Rated 5 out of 5 by Hou Traveler from Skin feels smoother I like this serum. It comes in a nice pump bottle and is easy to use. It goes on the skin very easily and soaks in so there's no oiliness and I can still use a moisturizer after the serum. My sensitive skin feels smoother after I use this serum.

Date published: 2020-12-29