Circadia MeriStem Antioxidant Serum
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The Circadia MeriStem Serum Antioxidant Serum is a lightweight, botanically driven serum formulated to visibly firm skin, smooth fine lines, and shield against daily environmental stress. Circadia has long been rooted in chronobiology and professional-grade skin science, and MeriStem reflects that same commitment to ingredients that work with the skin rather than against it.
Key Benefits
Visibly Firms and Lifts Cyclotetrapeptide-24 Aminocyclohexane Carboxylate, a peptide complex clinically shown to improve skin firmness and reduce the appearance of sagging, targets the structural changes that come with early aging.
Protects Against Environmental Damage Edelweiss meristem cell culture (Leontopodium Alpinum Meristem Cell Culture) delivers concentrated antioxidant activity, helping neutralize free radicals triggered by UV exposure and pollution before they can accelerate visible aging.
Supports Skin's Own Renewal Signals Malus Domestica Fruit Cell Culture Extract, derived from a rare Swiss apple, helps protect the skin's longevity by supporting cellular vitality and reducing the look of fine lines over time.
Reinforces the Skin Barrier Against Stress Ectoin, a natural extremolyte found in organisms that survive harsh environments, forms a protective shield around skin cells, helping reduce sensitivity and fortify the barrier against environmental aggressors.
Replenishes and Smooths Aloe barbadensis leaf juice and glycerin work together to draw moisture into the skin and keep it there, leaving skin feeling comfortable, soft, and balanced throughout the day.
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If your skin is showing early signs of aging, such as fine lines, loss of firmness, or a dull, depleted appearance, the Circadia MeriStem Serum Antioxidant Serum gives you a targeted way to address those changes without overwhelming your skin. It is particularly well-suited for those who want meaningful anti-aging results but need a formula gentle enough to use twice daily without irritation.
Sensitive skin types, including those who have struggled to tolerate more aggressive actives like retinol or acids, will find this serum easy to incorporate into an existing routine. It is also a strong fit for mature skin that has become more reactive over time and needs a protective, restorative approach rather than a harsh one.
This serum fits seamlessly into any morning or evening routine and works across all skin types. Whether you are building your first age-management routine or adding a targeted antioxidant step to an established regimen, the MeriStem Serum earns its place in the lineup.
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If your skin leans sensitive or reactive, try applying the MeriStem Serum as the first active step after cleansing, before any other serums or treatments. The ectoin in the formula helps buffer the skin against irritation, which can make the rest of your routine feel more comfortable and perform more effectively.
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Prepare: Apply to clean, dry skin on the face, neck, and décolleté.
Apply: Dispense a small amount and spread evenly across the treatment area.
Technique: Press gently into the skin rather than rubbing to encourage absorption.
Frequency: Use morning and evening for best results. Follow with your preferred moisturizer.
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Key Ingredients
- Apple Stem Cell Extract: Help protect skin stem cells, support renewal, and reduce visible signs of aging for smoother, more resilient skin.
- Edelweiss Stem Cell Extract: Delivers antioxidant protection while improving elasticity and firmness for a lifted, refined look.
- Cyclopeptide-5: A powerful peptide complex that visibly reduces fine lines and supports firmer, more youthful skin.
- Ectoin: Works to provide a protective shield for the skin and is a natural moisture binder, improving the health of the skin barrier and protecting against transepidermal water loss.
Aqua/Water, Citric Acid, Pentylene Glycol, Aloe Barbadensis Leaf Juice, Xanthan Gum, Ammonium Acryloyldimethyltaurate/VP Copolymer, Caprylyl Glycol, Leontopodium Alpinum Meristem Cell Culture, Alcohol, Phenoxyethanol, Tetrasodium EDTA, Malus Domestica Fruit Cell Culture Extract, Hexylene Glycol, Ectoin, Lecithin, Glycerin, Sodium Hydroxide, Sodium Metabisulfite, Sodium Benzoate, Potassium Sorbate, Cyclotetrapeptide-24 Aminocyclohexane Carboxylate
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What makes the Circadia MeriStem Serum Antioxidant Serum different from other plant stem cell serums?
Most plant stem cell products rely on a single extract, but the Circadia MeriStem Serum Antioxidant Serum combines two distinct meristem cell cultures, edelweiss and Swiss apple, alongside a peptide complex (Cyclotetrapeptide-24 Aminocyclohexane Carboxylate) and ectoin. That combination addresses antioxidant protection, cellular vitality, and structural firmness in a single step rather than isolating just one function.
What is ectoin and why is it included in the Circadia MeriStem Serum Antioxidant Serum?
Ectoin is a naturally occurring molecule produced by microorganisms that live in extreme environments. It works by forming a protective layer around skin cells that shields them from environmental stressors like UV exposure, pollution, and temperature changes. In the MeriStem Serum, ectoin helps strengthen the skin barrier and reduce sensitivity, making the formula well-tolerated even by reactive skin types.
How does the plant stem cell technology in the Circadia MeriStem Serum Antioxidant Serum work?
The serum uses meristem cell cultures from edelweiss (Leontopodium Alpinum Meristem Cell Culture) and Swiss apple (Malus Domestica Fruit Cell Culture Extract). These cultures are rich in antioxidants and bioactive compounds that help neutralize free radical damage and support the skin's natural vitality at a cellular level. They do not contain living cells but deliver the active compounds those cells produce.
Can the Circadia MeriStem Serum Antioxidant Serum be used on sensitive skin?
Yes. The formula is free of fragrance and designed with sensitive skin in mind. The combination of ectoin, aloe barbadensis leaf juice, and glycerin supports the barrier while calming the skin, and the absence of harsh actives like acids or retinoids makes it one of the gentler options in an anti-aging routine. If your skin is particularly reactive, starting with once-daily use and building to twice daily is a practical approach.
What peptide is in the Circadia MeriStem Serum Antioxidant Serum and what does it do?
The serum contains Cyclotetrapeptide-24 Aminocyclohexane Carboxylate, a peptide complex that targets the visible signs of skin laxity and fine lines. It works by signaling pathways associated with skin firmness and structural support, helping the skin look more lifted and resilient with continued use.
How soon can I expect to see results from the Circadia MeriStem Serum Antioxidant Serum?
Skin hydration and texture improvements are often noticeable within the first few weeks of consistent use. Firming and fine line results take longer, typically four to eight weeks of twice-daily application, as the peptide and stem cell actives work progressively to support the skin's structure. Results improve with consistent, long-term use.
Where does the Circadia MeriStem Serum Antioxidant Serum fit in a layering routine?
Apply the MeriStem Serum after cleansing and toning, before heavier serums, oils, or moisturizers. Because it has a lightweight, water-based texture, it absorbs quickly and layers well under other treatments without pilling or interfering with subsequent steps. It can be used in both morning and evening routines.
Why buy Circadia MeriStem Serum Antioxidant Serum from Art of Skin Care?
Art of Skin Care is an authorized retailer of Circadia, so every product you receive is 100% authentic, sourced directly through official brand channels and never from third-party resellers. Our team is made up of licensed, acne-certified estheticians who hand-select the products we carry based on real skin science and professional results. We don't just sell skincare; we understand it. Not sure if the Circadia MeriStem Serum Antioxidant Serum is right for your skin? Get a free skincare consultation and one of our estheticians will personally guide you.
The Circadia MeriStem Serum Antioxidant Serum is a lightweight, botanically driven serum formulated to visibly firm skin, smooth fine lines, and shield against daily environmental stress. Circadia has long been rooted in chronobiology and professional-grade skin science, and MeriStem reflects that same commitment to ingredients that work with the skin rather than against it.
Key Benefits
Visibly Firms and Lifts Cyclotetrapeptide-24 Aminocyclohexane Carboxylate, a peptide complex clinically shown to improve skin firmness and reduce the appearance of sagging, targets the structural changes that come with early aging.
Protects Against Environmental Damage Edelweiss meristem cell culture (Leontopodium Alpinum Meristem Cell Culture) delivers concentrated antioxidant activity, helping neutralize free radicals triggered by UV exposure and pollution before they can accelerate visible aging.
Supports Skin's Own Renewal Signals Malus Domestica Fruit Cell Culture Extract, derived from a rare Swiss apple, helps protect the skin's longevity by supporting cellular vitality and reducing the look of fine lines over time.
Reinforces the Skin Barrier Against Stress Ectoin, a natural extremolyte found in organisms that survive harsh environments, forms a protective shield around skin cells, helping reduce sensitivity and fortify the barrier against environmental aggressors.
Replenishes and Smooths Aloe barbadensis leaf juice and glycerin work together to draw moisture into the skin and keep it there, leaving skin feeling comfortable, soft, and balanced throughout the day.
If your skin is showing early signs of aging, such as fine lines, loss of firmness, or a dull, depleted appearance, the Circadia MeriStem Serum Antioxidant Serum gives you a targeted way to address those changes without overwhelming your skin. It is particularly well-suited for those who want meaningful anti-aging results but need a formula gentle enough to use twice daily without irritation.
Sensitive skin types, including those who have struggled to tolerate more aggressive actives like retinol or acids, will find this serum easy to incorporate into an existing routine. It is also a strong fit for mature skin that has become more reactive over time and needs a protective, restorative approach rather than a harsh one.
This serum fits seamlessly into any morning or evening routine and works across all skin types. Whether you are building your first age-management routine or adding a targeted antioxidant step to an established regimen, the MeriStem Serum earns its place in the lineup.
If your skin leans sensitive or reactive, try applying the MeriStem Serum as the first active step after cleansing, before any other serums or treatments. The ectoin in the formula helps buffer the skin against irritation, which can make the rest of your routine feel more comfortable and perform more effectively.
Prepare: Apply to clean, dry skin on the face, neck, and décolleté.
Apply: Dispense a small amount and spread evenly across the treatment area.
Technique: Press gently into the skin rather than rubbing to encourage absorption.
Frequency: Use morning and evening for best results. Follow with your preferred moisturizer.
- Apple Stem Cell Extract: Help protect skin stem cells, support renewal, and reduce visible signs of aging for smoother, more resilient skin.
- Edelweiss Stem Cell Extract: Delivers antioxidant protection while improving elasticity and firmness for a lifted, refined look.
- Cyclopeptide-5: A powerful peptide complex that visibly reduces fine lines and supports firmer, more youthful skin.
- Ectoin: Works to provide a protective shield for the skin and is a natural moisture binder, improving the health of the skin barrier and protecting against transepidermal water loss.
Aqua/Water, Citric Acid, Pentylene Glycol, Aloe Barbadensis Leaf Juice, Xanthan Gum, Ammonium Acryloyldimethyltaurate/VP Copolymer, Caprylyl Glycol, Leontopodium Alpinum Meristem Cell Culture, Alcohol, Phenoxyethanol, Tetrasodium EDTA, Malus Domestica Fruit Cell Culture Extract, Hexylene Glycol, Ectoin, Lecithin, Glycerin, Sodium Hydroxide, Sodium Metabisulfite, Sodium Benzoate, Potassium Sorbate, Cyclotetrapeptide-24 Aminocyclohexane Carboxylate
What makes the Circadia MeriStem Serum Antioxidant Serum different from other plant stem cell serums?
Most plant stem cell products rely on a single extract, but the Circadia MeriStem Serum Antioxidant Serum combines two distinct meristem cell cultures, edelweiss and Swiss apple, alongside a peptide complex (Cyclotetrapeptide-24 Aminocyclohexane Carboxylate) and ectoin. That combination addresses antioxidant protection, cellular vitality, and structural firmness in a single step rather than isolating just one function.
What is ectoin and why is it included in the Circadia MeriStem Serum Antioxidant Serum?
Ectoin is a naturally occurring molecule produced by microorganisms that live in extreme environments. It works by forming a protective layer around skin cells that shields them from environmental stressors like UV exposure, pollution, and temperature changes. In the MeriStem Serum, ectoin helps strengthen the skin barrier and reduce sensitivity, making the formula well-tolerated even by reactive skin types.
How does the plant stem cell technology in the Circadia MeriStem Serum Antioxidant Serum work?
The serum uses meristem cell cultures from edelweiss (Leontopodium Alpinum Meristem Cell Culture) and Swiss apple (Malus Domestica Fruit Cell Culture Extract). These cultures are rich in antioxidants and bioactive compounds that help neutralize free radical damage and support the skin's natural vitality at a cellular level. They do not contain living cells but deliver the active compounds those cells produce.
Can the Circadia MeriStem Serum Antioxidant Serum be used on sensitive skin?
Yes. The formula is free of fragrance and designed with sensitive skin in mind. The combination of ectoin, aloe barbadensis leaf juice, and glycerin supports the barrier while calming the skin, and the absence of harsh actives like acids or retinoids makes it one of the gentler options in an anti-aging routine. If your skin is particularly reactive, starting with once-daily use and building to twice daily is a practical approach.
What peptide is in the Circadia MeriStem Serum Antioxidant Serum and what does it do?
The serum contains Cyclotetrapeptide-24 Aminocyclohexane Carboxylate, a peptide complex that targets the visible signs of skin laxity and fine lines. It works by signaling pathways associated with skin firmness and structural support, helping the skin look more lifted and resilient with continued use.
How soon can I expect to see results from the Circadia MeriStem Serum Antioxidant Serum?
Skin hydration and texture improvements are often noticeable within the first few weeks of consistent use. Firming and fine line results take longer, typically four to eight weeks of twice-daily application, as the peptide and stem cell actives work progressively to support the skin's structure. Results improve with consistent, long-term use.
Where does the Circadia MeriStem Serum Antioxidant Serum fit in a layering routine?
Apply the MeriStem Serum after cleansing and toning, before heavier serums, oils, or moisturizers. Because it has a lightweight, water-based texture, it absorbs quickly and layers well under other treatments without pilling or interfering with subsequent steps. It can be used in both morning and evening routines.
Why buy Circadia MeriStem Serum Antioxidant Serum from Art of Skin Care?
Art of Skin Care is an authorized retailer of Circadia, so every product you receive is 100% authentic, sourced directly through official brand channels and never from third-party resellers. Our team is made up of licensed, acne-certified estheticians who hand-select the products we carry based on real skin science and professional results. We don't just sell skincare; we understand it. Not sure if the Circadia MeriStem Serum Antioxidant Serum is right for your skin? Get a free skincare consultation and one of our estheticians will personally guide you.
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Circadia MeriStem Antioxidant Serum
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- BCBeth C.Verified BuyerReviewingCircadia MeriStem Antioxidant SerumI recommend this productHow old are you? Over 65What is your skin type? NormalWhat is your skin tone? MediumWhat are your skin concerns? Ageing, Sensitivity, RednessRated 5 out of 5 stars4 weeks agocircadia serums
I haven't bought a Circadia serum yet that I haven't loved.
Was this helpful? - TBTricia B.Verified BuyerReviewingCircadia MeriStem Antioxidant SerumI recommend this productHow old are you? 30-39What is your skin type? CombinationWhat is your skin tone? FairWhat are your skin concerns? Blemish-prone, Dryness, Sensitivity, Acne, WrinklesRated 5 out of 5 stars1 month agoWhere has this been?
I really like how moisturized my face has felt since I started using this. I spray my face with a mineral water spray and then use a few small drops. A little will go a long way and I pat it into my skin until it’s absorbed. My face feels so much more supple. I need to order another bottle.
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