This serum has changed my skin- it soothes and protects my face and neck and put it on the back of my hands. Using at morning and night- limited wrinkles around my eyes and mouth. Looking much younger than 61!
OPRAH DAILY APPROVED | NOW AT ULTA.COM & QVC
Amazing Duo!
"Finally, products for the mature woman"
— April M. 55+
LIMITED QUANTITIES!
Theorem Serum Boost
The 1st to create skincare in our lab, not at a 3rd party contract manufacturer, to address midlife skin with better formulations & superior ingredients at a better-for-you price. ● Helps build skin backThe Grownup Moisturizer - The 1st Ever Moisturizer To Fight Both Internal & External Skin Aging In One Smart Formula.
● Helps rebuild lipid skin barrierOur proprietary tightnology formula uses the most advanced triple-action Hyaluronic Acid complex that is turbocharged with bio-fermentation to drive product deeply into hormone-depleted mature skin. Hyaluronic nutrition, sea & plant extracts, peptides and natural ceralipids® defy signs of skin aging. Dermatologist Tested.
We only create scientifically proven, next-generation Hyaluronic Acid mature skin care. Our products are validated in the Caire Lab and in real life by real women ages 40 and up with a full range of skin tones and skin types (including dry, oily, and combination.
Our anti-wrinkle Serum + The Grown Up Moisturizer skincare heroines are ideally used together. You get all the hyaluronic acid benefits so that your face and neck will look smoother, firmer and clearer faster - - meaning less dryness, irritation, redness, acne, spots, sags and droops.
FULL INGREDIENT LIST:
Theorem Serum Boost
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
The Grownup Moisturizer
Water, Butyrospermum Parkii (Shea) Butter, Propanediol, Simmondsia Chinensis (Jojoba) Seed Oil, Polyglyceryl-10 Oleate, Brassica Alcohol, Polyglyceryl-6 Distearate, Heptyl Undecylenate, Methylheptylglycerin, Polyglyceryl-10 Dipalmitate, Glycerin, C13-16 Isoalkane, Glyceryl Oleate, Sodium Hyaluronate, Oryza Sativa (Rice) Bran Oil Extract, Coconut Alkanes, Porphyridium Cruentum Extract, Yeast Extract, Soy Amino Acid, Xanthan Gum, Caprylhydroxamic Acid, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, 1,2-Hexanediol, Caprylyl Glycol
Theorem Serum Boost:
Use 1 to 2 dropperfuls on cleansed face & neck 2 times daily. Safe for use around the eye area, pat gently onto lid & undereye. May also be used on the hands and chest.
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.
30mL | 1 oz Serum - 1 month supply, used twice daily (based on 1 dropper per use).
The Grownup Moisturizer
Use twice a day to strengthen and repair your skin’s structure and promote healthier midlife skin. Optimal all day & night hydration Caire US lab created formula, research-backed Ceralipids®, Hyaluronic Acid Spectrum & Fermented Peptide Skin Matrix protection. May also be used on the hands and any other area where there is dryness. Use after serum.
50mL | 1.7 oz Moisturizer - 3 month supply, used twice daily.
Our friends are truly beautiful on the inside & out, but after using the Caire face lifting mask 1 time for 15 minutes, 1-2 dropperfuls of the pro aging (no anti-aging over here!) face +eye serum & a dab of the grownup moisturizer; everyone's skin was glowing so we snapped this picture (no makeup & unretouched photos). With longer use your skin will glow, firm & smooth even more.
GET DEEP MATURE SKIN CARE CREATED IN THE CAIRE LAB
YOUR SKIN WILL DRINK UP THIS RICH POTENT FORMULA
MOISTURE BOOST |Tiniest Potent Hyaluronic Acid
FIRMER UPPER |Supercharged GF1 Peptide
GO DEEP |Proprietary Fermentation Process
WE BELIEVE IN PROVING THAT OUR FORMULA WORKS FOR AGING SKIN DIFFERENTLY
You can also transform the health of your skin through the power of plants, the sea and unique science.
If we still haven’t convinced you, see for yourself what women who tried our products had to say about how Caire performs
GET DEEP MATURE SKIN CARE CREATED IN THE CAIRE LAB
YOUR SKIN WILL DRINK UP THIS RICH POTENT FORMULA
SUPER MOISTURE BOOST |Tiniest Potent Hyaluronic Acid
FIRMER UPPER |Supercharged GF1 Peptide & Natural Ceramide Mimicking Rice
GO DEEP |Proprietary Fermentation Process
FOUNDED BY 2 WOMEN OVER 50, IN BEAUTY, WHO WANTED NEW SCIENCE THAT DOESN'T JUST SAY IT WORKS, BUT THAT REALLY WORKS.
So we went about creating it with our scientist partners in our own lab. Mature skin care formulas that works to help build skin back up from the inside out.
Effective Facial Skin Care Science That REALLY Does What It Says.
Overall rating: 4.9 / 5 from 343 reviews.
This serum has changed my skin- it soothes and protects my face and neck and put it on the back of my hands. Using at morning and night- limited wrinkles around my eyes and mouth. Looking much younger than 61!
Tamara B. 5/5 Verified
Post radiation care There are many things I love about the Caire products, being able to use them when my skin was at its most delicate, post radiation, was such a gift. The gentle, yet powerful hydration was just what my super sensitive skin needed. So grateful for these products!!!! A little goes a long way. Love to recommend this to clients as well as those going through challenging medical or menopausal times/issues.
Tiffin K. 5/5 Verified
These products are exceptional - people cannot believe how my skin looks at my age - Firm, smooth and moist TY Caire products - I will stick with you!
Cherylynn L. 5/5 Verified
At 71 I try to incorporate serums that will improve hydration and I utilize Caire serum to do just that.
Kathy K. 4/5 Verified
I am appreciating the difference I see in my skin from using both the the Grownup Moisturizer and the Theorem Serum Boost. The swelling around my eyes has been greatly reduced and my skin is looking firm, smooth and moist in a new way. I am delighted to see the effects of these wonderful products TY Cherylyn Lavagnino
Cherylynn L. 5/5 Verified
Love it.
Andrea A. 5/5 Verified
Love the moisturizer as it’s light, not greasy and melts into my skin.
Darien W. 5/5 Verified
This serum plumps my skin and leaves my skin feeling bouncy. I’ve been using this for months and it’s my skincare hero product. I cannot be without this!
Bette B. 5/5 Verified
I’ve been using this serum for a few years and really can’t live without it. I just received my latest shipment and I’m so happy to have a full bottle again!!
Danielle M. 5/5 Verified
I started using the moisturizer last year, after applying the serum. Best moisturizer ever! Goes on so smoothly, absorbs quickly, no residue. Just fresh moisturized skin
Suzette C. 5/5 Verified
2021 was when my skin care changed. I love Caire. My skin is sensitive so it was hard to try something new. It soaks right in. I finish off with applying any left over serum on the top of my hands. I have noticed a difference. I use the mask twice a week and always travel with both. I give the serum away as gifts so my friends can try. Customer service is outstanding! Any questions I have had, they always helped me and made me feel I was truly part of the Caire family!
Colleen P. 5/5 Verified
Once you reach a certain age and want to have your skin, hair, nails and body look good you seek out products that truly work. When I discovered Caire after watching Good Morning America I was impressed with all of their products. The serum, moisturizer and mask have become my go to products for glowing, more youthful skin (and I’m in my 80s!). I’ve even gotten my sisters and daughter to use Caire as I love supporting a women owned business as well.
Alease G. 5/5 Verified
I love the Caire products! I have been using the serum for over 2 years and it has made a huge difference in hydration and appearance.
Bridgett G. 5/5 Verified
Much firmer skin and very much more vibrant!!! Love the serum
Mary Lou N. 5/5 Verified
Magical product I've seen an amazing difference in just a few weeks of use. I use it on my whole face...even around eyes. zero allergic reactions...and I was recently asked if I qualified for the senior discount. I'll be 73 in August! I use this with the equally wonderful moisture cream...fantastic combo.
Carla H. 5/5 Verified
Loving it so far Loving it so far
Nancy H. 5/5 Verified
Theorem Serum Boost 30mL | 1oz + The Grown Up Moisturizer 50 mL | 1.7oz
Brilliant hydration As a licensed esthetician I have used this product on hundreds of clients and myriad of skin types. The hydration is wonderful and super easy for in spa and at home use! Love the glow, and the skin hydration this product consistently delivers.
Tiffin K. 5/5 Verified
Botox in a bottle I routinely received Botox and when I went to my doctors office, they were surprised I didn’t need as many units as normal when they asked what was going on. I told them about this serum boost. He was extremely impressed with the entire line
Anita M. 4/5 Verified
Obsessed I am obsessed with this product . My skin has never self so healthy and hydrated 10 out of 10 !
Laura H. 5/5
Improvements to my thin, fragile “senior” skin! Theorem Serum Boost has made a significant improvement to the texture and appearance of my 76-year-old skin! I have very thin, very fair dry skin with some red spots. This past year I tried different cleansers, moisturizers and foundation, but the Caire Theorem Serum Boost was the only product that made a significant difference in my skin texture and appearance. I apply it twice a day on cleansed skin, then moisturize. Consistent use is the key for my skin. L
Anne H. 5/5 Verified
Store owner replied: Anne, you have made our day! Than you so much for this wonderful review. Sometimes it's challenging to explain to others that in order to improve skin health you have to be consistent with a product. This is Caire's philosophy and we appreciate you for recognizing this. Happy glowing. Founders, Lorrie & Celeste
Does what it says I am a middle aged woman who recently started using Caire’s Serum Boost and Moisturize. In general I have not been a fan of daily facial routines and believe they are expensive and useless. I recently started noticing lines on my forehead and bags under my eyes. A good friend suggested I try Caire’s products. I was wary at first, but promised to give it a try. I must say after a few days I saw a remarkable difference. My bags had cleared considerably as well as the lines on my forehead! I am sold, and would recommend to anyone who will listen! I thought I would have to pay hundreds of dollars on botox and surgery. I once again feel confident about my looks and owe that success to Caire! 👏🏽👏🏽👏🏽
Michelle R. 5/5 Verified
Worth the wait! I’ve been using the mask and serum for a few years, hoped for a moisturizer and I’m not disappointed! At first it felt a little sticky on my face, then my skin felt soft and smooth…I was glowing! You only need a small amount for beautiful results. Okay Caire, we now need a facial cleanser to round out the routine.
Tina L. 5/5 Verified
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.
Ilghana W. 5/5 Verified
Store owner replied: 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
I call it Liquid Silk! I absolutely love the look and feel of this product! I’ve been using the moisturizer and my skin feels soft and has a beautiful glow!
Diane J. 5/5 Verified
Store owner replied: Diane, Thank you thank you for being one of our Caire enthusiasts. We know how much you love how your skin has transformed with Caire and we truly appreciate you being one of the very first of our customers to try this luscious transformative moisturizer. With caire, Lorrie & Celeste
A Must Have! I've been using this serum on my face every morning and night, on bare skin. Then, I build my regular products on top (face oil, moisturizer, etc). I like the consistency of this--it's nice and thick. No adverse skin reactions. My skin looks great--I'm going to keep using this!
Carolyn F. 5/5 Verified
Best discovery for my facial care in decades! I got the Caire Serum for my wife to try at home, though curious with its efficacy I couldn’t resist giving it a go. I have a complicated facial condition that is similar to a ‘rosacea-like’ problem where if left un-moisturized my skin gets dry, flaky and develops an embarrassing redness like I’ve been out in the sun too long or spent time drinking at the bar. This product is the first facial skincare solution that addresses my unique (and very irritating) skin condition. Additional there is no stinging upon application near the eyes which is a big plus for me. In fact, I can apply the clear nourishing Serum all around my eyes including my eyelids which is ideal to fight back my crow’s feet and other signs of my 50's vintage of an age. After a few seconds the serum all sinks in and any non-rubbed areas just disappear and does not leave traces like a traditional cream. It’s also unexpectedly economical since the product is concentrated, so you only need a drop or 2 for your entire face. The only thing I miss from my previous go-to product is having SPF protection as I know sun damage is a leading cause of premature skin aging. Best serum EVER (and I'm a guy :)!
Joe 5/5 Verified
No more droopy eyelids!!! The serum really works. My eyelids are less droopy and tighter as a result! Thanks for the CAIRE!!!
Rachel H. 5/5 Verified
Affordable luxury that works! I absolutely love this serum! It is thick and luxurious and I see a difference in the firmness of my skin in just two weeks time! I can’t wait to see with continued use!
Lisa K. 5/5
Caire customer service is on point! This serum soaks all the way in, never sticky! I like to use it under my eyes, face, neck, and throat. Wonderful base for the rest of your skin care!
Jess P. 5/5 Verified
I am currently into my 4th month of using the Caire Beauty System and it shows! The serum was first and then the moisturizer and also the mask. All together I feel more confident and you will too! Not only do they sell great skincare they tell you the science behind each product. Also, you get a step by step guide how to use it. Caire Beauty is the real deal. Enjpy! Ann lso, you get a sstep by
Ann N. 5/5 Verified
I love the long-lasting, extra emollient -- moisture the products provide to my extremely dry skin, without any residue or greasy feeling left by many products designed to address dry skin. The product feels light when applied, soaks into my skin and feels silky smooth all day. Most importantly, I honestly see lasting results of younger looking and feeling skin, where the extreme dryness dissipates with each use! This is among the best products that I have ever used throughout my 40+ adult years. Thank you Caire for this remarkable skincare!
Karen G. 5/5 Verified
I love Caire Beauty products - how they feel on my face and more importantly, how they have moisturized my face and in some cases, removed fine lines. Thank you!
Ginger C. 5/5 Verified
I have been using Caire Beauty since May when I saw it on QVC, I purchased the serum twice on QVC and then went to your informational website instead to buy the moisturizer and the mask. I have had many compliments on my skin and I feel it is continuing to improve, I'm 77 and my skin looks better now than several years ago. Thank you Caire Beauty Girls!
Ann N. 5/5 Verified
I believe this is an amazing product for mature skin I have tried a lot of products on Facebook and I give this one 5 stars I am 75 years old
Catherine L. 5/5 Verified
I absolutely love both products I purchased! I've been using the serum and the moisturizer for 1 week and I already see the difference in the lumonocity of my skin. I am definitely a convert!
Diane L. 5/5 Verified
Love this serum, how moist your skin feels with application. Best of all quick delivery
Kathy K. 5/5 Verified
Great product I love it.
Cheryl N. 5/5 Verified
I love Caire beauty’s cleanser, serum, moisturizer, and mask. A little goes a long way. After a few days of using Caire, my face feels softer.
Charlene M. 5/5 Verified
My skin soaks up the serum and I am getting more and more compliments about how young I look for my age!
Leslie B. 5/5 Verified
Love the serum and the moisturizer. No scent, easily soaks into your skin. My skin feels great! Will definitely purchase again.
Margaret S. 5/5 Verified










