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Try Me Duo 15ml serum + 15ml Grownup Moisturizer

FORMULATIONS THAT WORK FROM WITHIN

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.

The Theorem Serum Boost 15ml unleashes potent active ingredients that work tirelessly to revitalize and rejuvenate, while The Grownup Moisturizer 15ml provides the perfect dose of hydration for a supple, luminous complexion.

How to Use The Theorem Serum Boost:
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, retinol or moisturizer, or facial oil. After using Caire's serum for smooth skin 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.

How to Use The Grown-up 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 the formula, research-backed Ceralipids®, Hyaluronic Acid Spectrum & Fermented Peptide Skin Matrix protection.
Apply a small amount on cleansed face, neck & décolleté 2 times daily. May also be used on the hands and any other area where there is dryness. Use after serum.



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

Customer Reviews

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!

Theorem Serum Boost

Customer photo review of The Grownup Moisturizer

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.

The Grownup Moisturizer

Customer photo review of Best Moisturizer for Mature Skin

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!

Best Moisturizer for Mature Skin

Customer photo review of Theorem Serum Boost

At 71 I try to incorporate serums that will improve hydration and I utilize Caire serum to do just that.

Theorem Serum Boost

Customer photo review of Best Moisturizer for Mature Skin

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

Best Moisturizer for Mature Skin

Customer photo review of Theorem Serum Boost

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!

Theorem Serum Boost

Customer video review of Best Moisturizer for Mature Skin

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!!

Best Moisturizer for Mature Skin

Customer photo review of Best Moisturizer for Mature Skin

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

Best Moisturizer for Mature Skin

Customer photo review of Theorem Serum Boost

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!

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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.

Theorem Serum Boost

Customer video review of Theorem Serum Boost

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.

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

Much firmer skin and very much more vibrant!!! Love the serum

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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.

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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.

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

Obsessed I am obsessed with this product . My skin has never self so healthy and hydrated 10 out of 10 !

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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

Theorem Serum Boost

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

Customer photo review of The Grownup Moisturizer

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! 👏🏽👏🏽👏🏽

The Grownup Moisturizer

Customer photo review of The Grownup Moisturizer

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.

The Grownup Moisturizer

Customer photo review of Theorem Serum Boost

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.

Theorem Serum Boost

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

Customer photo review of The Grownup Moisturizer

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!

The Grownup Moisturizer

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

Customer photo review of Theorem Serum Boost

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!

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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 :)!

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

No more droopy eyelids!!! The serum really works. My eyelids are less droopy and tighter as a result! Thanks for the CAIRE!!!

Theorem Serum Boost

Customer photo review of Theorem Serum Boost

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!

Theorem Serum Boost

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!

Theorem Serum Boost

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

Theorem Serum Boost

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!

Best Moisturizer for Mature Skin

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!

Theorem Serum Boost

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!

Best Moisturizer for Mature Skin

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

Best Moisturizer for Mature Skin

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!

Best Moisturizer for Mature Skin

Love this serum, how moist your skin feels with application. Best of all quick delivery

Theorem Serum Boost

My skin soaks up the serum and I am getting more and more compliments about how young I look for my age!

Best Moisturizer for Mature Skin

Love the serum and the moisturizer. No scent, easily soaks into your skin. My skin feels great! Will definitely purchase again.

Theorem Serum Boost