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A Powerful Serum!

“I've been using the serum twice a day ... and can see a difference in my skin’s texture. The Theorem Serum Boost is much richer than other Hyaluronic Acid products ... & has done wonders for my combination skin - it looks & feels smoother & more evenly hydrated.”

— KELLY B.

5.0 out of 5
5.0 of 131 Reviews

Theorem Serum Boost

Clean • Vegan • Zero No-Nos

The 1st to create skincare in our own lab, not at a 3rd party contract manufacturer, to address midlife skin with better formulations and superior ingredients at a better-for-you price.

● Helps build skin back
● Deeply hydrates hormone-depleted skin
● Provides molecular nutrition for skin health recovery
● As seen in Health Magazine | Best in Skin Award
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Deliver Every

Resist & Lift

Stimulates Hyaluronic Acid (HA) production (HA = Fountain of Youth key skin molecule). Ever wonder how to enhance collagen production in skin? Our spectrum of HA's quickly work to help make skin (and eyes) behave and look younger through healthier skin that builds itself back up. An all-in-one anti-aging firming, lifting, hydrating serum for the face, around the eyes, neck, chest, hand areas.

Age awesome skincare. Transforms your skin. Get your skin healthy. Help stop wrinkles in their tracks.

Simply Apply & Dry

Apply one to two dropperfuls morning and night after cleansing. We are serious when we say to apply the skin firming serum twice a day; otherwise, those unique regenerative skin-building hyaluronic acid benefits may never happen.

More Information

Apply before other serums, retinols or a moisturizer, or facial oil. After using Caire's serum for smooth skin you may elect not to use a moisturizer depending on your skin type.

Use the multi-molecular hyaluronic serum s on the face, neck, chest, and/or back of hands and wherever else you feel the need.

Eye-vantage: Pat gently around eyes but don’t miss the undereye, eyelid, and all around. Feeding this ocular area is a win. Because with consistent use, you can help lift up sags and bags around the eye area - one of the top skin concerns from hormone-caused aging.

1 oz | 30ml Serum - 1 month supply, used twice daily (based on 1 dropper per use).

0.5 oz | 15ml Serum - 1/2 month supply, used twice daily (based on 1 dropper per use).


SERUM FOR GROWNUPS 40+

Age Awesome Super Powered Hydration Creator

Stimulates Hyaluronic Acid (HA) production (HA = Fountain of Youth key skin molecule).  Ever wonder how to enhance collagen production in skin?  Our spectrum of HA's quickly work to help make skin (and eyes) behave and look younger through healthier skin that builds itself back up. An all-in-one anti-aging firming, lifting, hydrating serum for the face, around the eyes, neck, chest, hand areas.

97% of users said they looked 5 years younger.

100% of Women saw visibly firmer, softer skin (and eyes) after 4 weeks*

Apply one to two dropperfuls morning and night after cleansing. We are serious when we say to apply the skin firming serum twice a day; otherwise, those unique regenerative skin-building hyaluronic acid benefits may never happen.

Apply before other serums, retinols or a moisturizer, or facial oil. After using Caire's serum for smooth skin you may elect to use The Grownup Moisturizer for deeper hydration.

Use the multi-molecular hyaluronic serum on the face, neck, chest, and/or back of hands and wherever else you feel the need.

Eye-vantage: Pat gently around eyes but don’t miss the undereye, eyelid, and all around. Feeding this ocular area is a win. Because with consistent use, you can help lift up sags and bags around the eye area - one of the top skin concerns from hormone-caused aging.

1 oz | 30ml Serum - 1 month supply, used twice daily (based on 1 dropper per use).

0.5 oz | 15ml Serum - 1/2 month supply, used twice daily (based on 1 dropper per use).

Nutritive HA delivers deeper, better hydration

Peptides boost collagen protein growth, keeping skin firm

Improves microcirculation within the skin; soothes inflammation and redness especially around the eyes

A super ingredient that targets eye bags and droop around the eyes

FULL INGREDIENT LIST:

Water, Glycerin, Propanediol, Sodium Hyaluronate, Betaine, Disodium Edetate, Hydrolyzed Sodium Hyaluronate, Jasminum Sambac (Jasmine) Flower Extract, Crataegus Monogyna Flower Extract, Yeast Extract, Tetradecyl Aminobutyroylvalyaminobutyric Urea Trifluoroacetate, Caprylhydroxamic Acid, Sodium Benzoate, Soy Amino Acids, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Amino-Esters-1, Coccinia Indica Fruit Extract, Corallina Officinalis Extract

Key Benefits

Stimulates Hyaluronic Acid (HA) production (HA = Fountain of Youth key skin molecule).  Ever wonder how to enhance collagen production in skin?  Our spectrum of HA's quickly work to help make skin (and eyes) behave and look younger through healthier skin that builds itself back up. An all-in-one anti-aging firming, lifting, hydrating serum for the face, around the eyes, neck, chest, hand areas.

97% of users said they looked 5 years younger.

100% of Women saw visibly firmer, softer skin (and eyes) after 4 weeks*

Directions

Apply one to two dropperfuls morning and night after cleansing. We are serious when we say to apply the skin firming serum twice a day; otherwise, those unique regenerative skin-building hyaluronic acid benefits may never happen.

Apply before other serums, retinols or a moisturizer, or facial oil. After using Caire's serum for smooth skin you may elect to use The Grownup Moisturizer for deeper hydration.

Use the multi-molecular hyaluronic serum on the face, neck, chest, and/or back of hands and wherever else you feel the need.

Eye-vantage: Pat gently around eyes but don’t miss the undereye, eyelid, and all around. Feeding this ocular area is a win. Because with consistent use, you can help lift up sags and bags around the eye area - one of the top skin concerns from hormone-caused aging.

1 oz | 30ml Serum - 1 month supply, used twice daily (based on 1 dropper per use).

0.5 oz | 15ml Serum - 1/2 month supply, used twice daily (based on 1 dropper per use).

Ingredients

Nutritive HA delivers deeper, better hydration

Peptides boost collagen protein growth, keeping skin firm

Improves microcirculation within the skin; soothes inflammation and redness especially around the eyes

A super ingredient that targets eye bags and droop around the eyes

FULL INGREDIENT LIST:

Water, Glycerin, Propanediol, Sodium Hyaluronate, Betaine, Disodium Edetate, Hydrolyzed Sodium Hyaluronate, Jasminum Sambac (Jasmine) Flower Extract, Crataegus Monogyna Flower Extract, Yeast Extract, Tetradecyl Aminobutyroylvalyaminobutyric Urea Trifluoroacetate, Caprylhydroxamic Acid, Sodium Benzoate, Soy Amino Acids, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Amino-Esters-1, Coccinia Indica Fruit Extract, Corallina Officinalis Extract

Clean
Vegan
Cruelty-Free
Fragrance-Free
No Microplastics
Tested on GrownUp Women
Good For All Skin Types
No No-No's
Woman Owned

KANOE GLOWS FROM THE INSIDE OUT WITH CAIRE

average rating 5.0 out of 5
Based on 131 reviews
  • 5 Stars
    129 Reviews
  • 4 Stars
    1 Review
  • 3 Stars
    1 Review
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
99% of reviewers would recommend this product to a friend
Customer photos and videos
131 Reviews
Reviewed by Pamela S., from United States
Verified Buyer
I recommend this product
Age Range
41 - 54
The Founders are interested in knowing what skin concerns you have:
  • Eye Sags and Bags
What is the single most important product you are looking to improve upon:
  • Face moisturizer
  • Eye cream
What is the single thing you would want to improve on your skin?
  • Droops & Sags
Rated 5 out of 5
Review posted

Simply The Best

Stacks up 100% with the mega pricy brands. Caire is a great find for your face and your pocketbook.

Join the party

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Reviewed by Jasmine B., from United States
Verified Buyer
I recommend this product
Age Range
41 - 54
What is the single most important product you are looking to improve upon:
  • Face moisturizer
  • Exfoliator
  • Facial cleanser
  • Eye cream
What is the single thing you would want to improve on your skin?
  • Acne
Rated 5 out of 5
Review posted

I love it!

I love it! My skin looks great

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Reviewed by IlGhana W., from United States
Verified Buyer
I recommend this product
Age Range
55 - 64
The Founders are interested in knowing what skin concerns you have:
  • Dry Skin
  • Skin Changes due to Menopause
  • Eye Sags and Bags
What is the single most important product you are looking to improve upon:
  • Facial cleanser
What is the single thing you would want to improve on your skin?
  • Droops & Sags
  • Thinning or weaking skin
Rated 5 out of 5
Review posted

Skin on brighter

I’ve been using the Caire products for about 3 years now and I’ve noticed remarkable changes and improvement. I suffered from patches of dry skin on my forehead and since using Caire the dry areas have smoothed out and my skin looks more youthful. I’ve recommended it to friends and family and they have all been very happy with the results.

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Caire Beauty

We are so grateful for you! Thank you for bringing Caire to your skincare routine so that you can glow & have your skin look more youthful.
Founders - Lorrie & Celeste

Reviewed by Mary P., from United States
Verified Buyer
I recommend this product
Age Range
55 - 64
The Founders are interested in knowing what skin concerns you have:
  • Dry Skin
  • Skin Changes due to Menopause
  • Rosacea
What is the single most important product you are looking to improve upon:
  • Eye cream
  • Exfoliator
What is the single thing you would want to improve on your skin?
  • Thinning or weaking skin
Rated 5 out of 5
Review posted

My new favorite serum

I discovered the serum when it was featured on QVC. When I heard that it was specifically designed for menopausal and post menopausal skin, I decided needed to try it.

It goes on my skin so smoothly and I feel that my skin has been fresher and smoother since I’ve been using it. I love that I can use the serum all over my face—including the eye area. I haven’t tried the moisturizer yet. I use a moisturizer from another brand and this serum compliments the moisturizer really well. I might give the Caire moisturizer a try when I use up what I have currently use.

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Reviewed by Cheryl T., from United States
Verified Buyer
I recommend this product
Age Range
55 - 64
The Founders are interested in knowing what skin concerns you have:
  • Dry Skin
  • Skin Changes due to Menopause
What is the single most important product you are looking to improve upon:
  • Facial cleanser
  • Exfoliator
What is the single thing you would want to improve on your skin?
  • Dryness
  • Droops & Sags
  • Thinning or weaking skin
Rated 5 out of 5
Review posted

Love it!

This is the best serum that I have ever tried!

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