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Home SKINCARE FOR GROWNUP SKIN Theorem Serum Boost 30 mL | 1 oz. (30 Day Supply)
Theorem Serum Boost 30 mL | 1 oz. (30 Day Supply)
Theorem Serum Boost 30 mL | 1 oz. (30 Day Supply)
Caire Theorem Serum Boost
Theorem Serum Boost 30 mL | 1 oz. (30 Day Supply)
Theorem Serum Boost 30 mL | 1 oz. (30 Day Supply)
Theorem Serum Boost 30 mL | 1 oz.

Theorem Serum Boost 30 mL | 1 oz. (30 Day Supply)

Rated 5.0 out of 5
Based on 44 reviews
$56.00
To subscribe, select Subscribe & Save. With your first subscription, receive a complimentary mini Triple Lift Molecule Mask, which will automatically be added to your order.

  • 1 month supply, used twice daily (based on 1 dropper per use)

WHY OUR SERUM IS BETTER

Proprietary formula using the most advanced triple action Hyaluronic Acid turbo-charged through our unique delivery mechanism. 

Key Ingredients: Triple Hyaluronic Acid (HA) + HA Growth Factor

Immediate effect: Absorbs more deeply into skin (face, eyelids, eye bags, neck, chest & back of hands) to instantly nourish & glow

Current effect: Drives hydration through skin layers, creating suppleness

Long-term effect: Boosts Hyaluronic Acid synthesis; helps to restore skin firmness lost due to hormone decline and menopause

how it works

Clinically proven that with 2X daily usage, expect stronger, smoother skin in just 4 weeks. Skin firmness is proven to improve up to 200% and: 

·  Reduces appearance of lines & sags on the face (including around your eyes), neck, and chest

·  Helps strengthen skin from the inside, making skin suppler

·  Immediate moisture, creating a more youthful glow 

·  PhD made for dramatically changing skin due to hormone changes during and after menopause

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average rating 5.0 out of 5
Based on 44 reviews
  • 5 Stars
    44 Reviews
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100% of reviewers would recommend this product to a friend
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44 Reviews
Reviewed by Rachel H., from United States
Verified Buyer
I recommend this product
Age Range
55 - 64
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
What is the single thing you would want to improve on your skin?
  • Redness or pigmentation
Rated 5 out of 5
Review posted

No more droopy eyelids!!!

The serum really works. My eyelids are less droopy and tighter as a result! Thanks for the CAIRE!!!

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Reviewed by Stacy C., from United States
Verified Buyer
I recommend this product
Age Range
41 - 54
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:
  • Face moisturizer
What is the single thing you would want to improve on your skin?
  • Dryness
  • Thinning or weaking skin
Rated 5 out of 5
Review posted

Love this serum

I love this serum! I was looking for a serum that would be hydrating and this is it! My pores look great and my skin is amazing!

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Reviewed by Allison D., from United States
Verified Buyer
I recommend this product
Age Range
41 - 54
The Founders are interested in knowing what skin concerns you have:
  • Dry Skin
  • Rosacea
  • Hormonal Acne
What is the single most important product you are looking to improve upon:
  • Face moisturizer
  • Eye cream
  • Exfoliator
  • Body moisturizer
What is the single thing you would want to improve on your skin?
  • Thinning or weaking skin
  • Droops & Sags
Rated 5 out of 5
Review posted

Love this serum!

My face has never felt so hydrated and plump.

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Reviewed by Emily, from United States
I recommend this product
Age Range
Under 30
The Founders are interested in knowing what skin concerns you have:
  • Hormonal Acne
  • Eye Sags and Bags
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?
  • Acne
  • Redness or pigmentation
Rated 5 out of 5
Review posted

Amazing Glow! Skin Renew!

I actually won this product in one of their free giveaways, and it did not disappoint. I have noticed a drastic improvement while using this product. Not only does it make me feel and look younger, my skin has a long-lasting glow and essence to it now. Highly recommend the product and you get your moneys worth!!

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Reviewed by Frances J., from United States
Verified Buyer
I recommend this product
Age Range
41 - 54
The Founders are interested in knowing what skin concerns you have:
  • Dry Skin
  • Eye Sags and Bags
What is the single most important product you are looking to improve upon:
  • Face moisturizer
What is the single thing you would want to improve on your skin?
  • Dryness
  • Redness or pigmentation
  • Thinning or weaking skin
  • Droops & Sags
Rated 5 out of 5
Review posted

Refreshing

I like that when you apply the serum your skin feels hydrated. It doesn’t dry on sticky. Your face must be dry before applying serum or else it will feel sticky.

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the caire clean difference

HOW TO GET THE MOST OUT OF YOUR CAIRE EXPERIENCE

Watch our How To Guide to learn how to use the Theorem Serum Boost.

This is skin joy in a bottle!  I love putting the serum on my hands since it feels so hydrating and I wear surgical gloves everyday.

~ Tonya, Age 53

Here's the Proof:

"I love the Caire Serum, I've been using it now for a few months. I use it twice a day and I noticed immediately that my skin has aglow. It feels soft and nourished. And while I love the immediate benefits, I also know that it's regenerating for my skin long term. As I'm aging, I realize that there's more than I need to do to make sure that my skin is healthy and moisturize. And I know the care beauty is doing that work in the short term and in the long term."

~ Kim C.

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