Circadia Chrono-Calm Calming Serum 15mL 0.5 fl oz dark blue dropper bottle on light gray background

Circadia Chrono-Calm Calming Serum texture swatch showing clear lightweight water-based gel consistency with micro-bubbles

Hand dispensing Circadia Chrono-Calm Calming Serum from dropper bottle, a lightweight water-based serum that soothes irritation and restores resilience to sensitive and reactive skin

Circadia Chrono-Calm Calming Serum dropper bottle with key ingredients: Telangyn to reduce redness, MAXnolia Blend to neutralize inflammation, Provitamin B5 and Algae Extracts for repair and hydration, and Aldavine Ginger and Marshmallow Extracts to calm irritation

Woman with calm, even-toned skin showing Circadia Chrono-Calm Calming Serum is best for red, sensitive, irritated, compromised, post-inflammatory, and rosacea-prone skin

Five-star verified customer review for Circadia Chrono-Calm Calming Serum praising its lightweight texture and effectiveness at reducing redness, irritation, and sensitivity

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Circadia Chrono-Calm Serum

Name: Circadia Chrono-Calm Serum
Brand: Circadia
Price: 50.0 USD
Availability: InStock
Rating: 4.8 (18 reviews)

Circadia

A calming serum that reduces visible redness, soothes irritation, and supports resilience in sensitive or rosacea-prone skin.

4.8

Rated 4.8 out of 5 stars

18 Reviews

Size: 0.5 oz

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Circadia Chrono-Calm Serum is a targeted calming serum designed to bring lasting relief to sensitive, rosacea-prone, and chronically reactive skin. It combines advanced peptides, marine-derived actives, and skin-conditioning botanicals to quiet redness, ease discomfort, and help strengthen skin over time. The formula is fragrance-free, making it well-suited for skin that reacts to even the smallest provocation.
Key Benefits
Reduces Visible Redness and Dilated Capillaries Acetyl tetrapeptide-40 is a targeted peptide that works to reduce the appearance of redness and visible capillaries by addressing vascular reactivity at the skin's surface.
Calms Stinging, Burning, and Irritation Panthenol and beta-glucan work together to soothe active discomfort, including the stinging and burning sensations that often accompany sensitive or flare-prone skin.
Hydrates and Supports the Skin Barrier Sodium hyaluronate and glycerin deliver multi-level hydration, helping skin feel comfortable and less tight while supporting a more resilient protective barrier.
Reinforces Skin Against Future Irritation Alteromonas ferment extract, a marine-derived active, helps condition the skin's response to environmental stressors, supporting long-term resilience rather than just short-term relief.
Delivers Antioxidant and Barrier Defense Tocopherol and Vitis vinifera seed extract provide antioxidant protection against the oxidative stress that can worsen sensitivity, while avena sativa kernel extract offers additional calming and barrier-protective benefits.
If your skin flushes easily, reacts to temperature changes, or never quite feels comfortable in its own surface, the Circadia Chrono-Calm Serum was built with you in mind. It is especially well-suited for those managing rosacea, persistent redness, or visible capillaries that are difficult to address with standard serums.
This serum is also a reliable option for skin that becomes sensitized from environmental exposure, such as wind, sun, or cold weather. If your face feels tight, stings during product application, or shows ongoing diffuse redness, this formula addresses those concerns directly rather than masking them.
Because the formula is fragrance-free and built around gentle yet effective actives, it works well for those who have struggled to find a serum that calms without causing additional irritation. It is appropriate for daily use across all skin types dealing with sensitivity or reactivity.
For skin that flushes with temperature changes or reacts quickly to wind and environmental triggers, try applying Circadia Chrono-Calm Serum to slightly damp skin right after cleansing. The added moisture helps the sodium hyaluronate and glycerin absorb more efficiently, and the calming actives can get to work faster on a well-hydrated surface.
Cleanse and tone first, then apply a few drops of Circadia Chrono-Calm Serum to the face, neck, and chest.
Apply morning and evening for consistent results.
Layer a moisturizer on top to seal in the serum and support additional barrier comfort.
Follow with SPF every morning when using as part of your daytime routine.
Key Ingredients

Telangyn™ (Acetyl Tetrapeptide-40): Clinically proven to decrease skin redness caused by inflammation. Reduces post-inflammatory hyperpigmentation while it shrinks dilated blood vessels on the surface of the skin.
Aldavine™: A powerful ingredient comprised of two polysaccharides that boosts the health of capillaries to minimize eye puffiness and reduce pigmentation that causes dark circles.
Alteromonas Ferment Extract: Reduces skin reactivity and irritation and lessens erythema, while also activating healing and repair.
Magnolia Bark Extract: Contains anti-inflammatory properties to reduce the appearance of skin redness while hydrating for visibly firmer skin.
Panthenol (Vitamin B5): A powerful natural moisturizer, healer, and protector that rebuilds the barrier and acts as a shield against irritation.
Ginger Root Extract/Oil: A powerful antiseptic, rich in antioxidants with anti-inflammatory properties.

Aqua/Water, Panthenol, Sodium Hyaluronate, Sorbitol, Glycerin, Butylene Glycol, Pentylene Glycol, Ascophyllum Nodosum Extract, Paullinia Cupana Fruit Extract, Ilex Paraguariensis Leaf Extract, Althaea Officinalis Root Extract, Avena Sativa Kernel Extract, Zingiber Officinale Root Extract, Alteromonas Ferment Extract, Potassium Sorbate, Cola Nitida Seed Extract, Sodium Metabisulfite, Beta-Glucan, Asparagopsis Armata Extract, Sodium Benzoate, Magnolia Officinalis Bark Extract, Tocopherol, Acetyl Tetrapeptide-40, Vitis Vinifera Seed Extract, Citric Acid, Caprylyl Glycol, Maltodextrin, Phenoxyethanol, Tetrasodium Glutatmate Diacetate, Lecithin, Hexylene Glycol.
What skin concerns is Circadia Chrono-Calm Serum best suited for?

Circadia Chrono-Calm Serum is formulated specifically for sensitive, rosacea-prone, and reactive skin that experiences persistent redness, visible capillaries, stinging, or burning. It is also helpful for skin that becomes sensitized from environmental factors like wind, cold, or sun exposure. If your skin tends to flush easily or never feels fully calm, this serum addresses those concerns directly.

What is acetyl tetrapeptide-40 and why is it in Circadia Chrono-Calm Serum?

Acetyl tetrapeptide-40 is a targeted peptide that helps reduce the visible appearance of redness and dilated capillaries by addressing vascular reactivity at the skin's surface. It is one of the primary active ingredients in Circadia Chrono-Calm Serum and is a key reason the formula is particularly effective for rosacea-prone skin. Unlike topical redness concealers, this peptide works to visibly reduce the underlying vascular appearance over time with consistent use.

Can Circadia Chrono-Calm Serum be used twice daily?

Yes, Circadia Chrono-Calm Serum is designed for both morning and evening use. Consistent twice-daily application supports the best long-term results, including reduced visible redness and improved skin resilience. In the morning, always follow with a broad-spectrum SPF to protect sensitized skin from UV triggers that can worsen reactivity.

Is Circadia Chrono-Calm Serum fragrance-free?

Yes, Circadia Chrono-Calm Serum is fragrance-free, which makes it appropriate for skin that reacts to added scent. Fragrance is one of the most common triggers for sensitive and rosacea-prone skin, so its absence in this formula is a deliberate and important formulation choice.

What marine-derived ingredients are in Circadia Chrono-Calm Serum and what do they do?

Circadia Chrono-Calm Serum contains Alteromonas ferment extract and Asparagopsis armata extract, both sourced from marine origins. Alteromonas ferment extract helps condition the skin's response to environmental stressors, supporting long-term resilience rather than only addressing irritation in the moment. Ascophyllum nodosum extract, a brown seaweed, contributes additional soothing and skin-conditioning benefits to the overall formula.

How does Circadia Chrono-Calm Serum address skin tightness and discomfort?

The formula includes sodium hyaluronate and glycerin, which together provide multi-level hydration that helps relieve the tight, uncomfortable feeling that often accompanies sensitized skin. Panthenol and beta-glucan add a calming layer that soothes active stinging and burning sensations. Together these ingredients help the skin feel noticeably more comfortable without relying on heavy occlusives or masking agents.

Does Circadia Chrono-Calm Serum contain antioxidants?

Yes, Circadia Chrono-Calm Serum includes tocopherol and Vitis vinifera seed extract, both of which provide antioxidant protection. Oxidative stress can worsen skin sensitivity and reactivity, so these ingredients play a supporting role in keeping the skin environment calmer over time. Avena sativa kernel extract also contributes additional calming and barrier-supportive benefits alongside the antioxidant ingredients.

Why buy Circadia Chrono-Calm 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 Circadia Chrono-Calm Serum is right for your skin? Get a free skincare consultation and one of our estheticians will personally guide you.

Learn More

Circadia Chrono-Calm Serum is a targeted calming serum designed to bring lasting relief to sensitive, rosacea-prone, and chronically reactive skin. It combines advanced peptides, marine-derived actives, and skin-conditioning botanicals to quiet redness, ease discomfort, and help strengthen skin over time. The formula is fragrance-free, making it well-suited for skin that reacts to even the smallest provocation.

Key Benefits

Reduces Visible Redness and Dilated Capillaries Acetyl tetrapeptide-40 is a targeted peptide that works to reduce the appearance of redness and visible capillaries by addressing vascular reactivity at the skin's surface.

Calms Stinging, Burning, and Irritation Panthenol and beta-glucan work together to soothe active discomfort, including the stinging and burning sensations that often accompany sensitive or flare-prone skin.

Hydrates and Supports the Skin Barrier Sodium hyaluronate and glycerin deliver multi-level hydration, helping skin feel comfortable and less tight while supporting a more resilient protective barrier.

Reinforces Skin Against Future Irritation Alteromonas ferment extract, a marine-derived active, helps condition the skin's response to environmental stressors, supporting long-term resilience rather than just short-term relief.

Delivers Antioxidant and Barrier Defense Tocopherol and Vitis vinifera seed extract provide antioxidant protection against the oxidative stress that can worsen sensitivity, while avena sativa kernel extract offers additional calming and barrier-protective benefits.

Who it's For

Esthetician Recommendations

How to Use

Ingredients

Frequently Asked Questions

What skin concerns is Circadia Chrono-Calm Serum best suited for?

Circadia Chrono-Calm Serum is formulated specifically for sensitive, rosacea-prone, and reactive skin that experiences persistent redness, visible capillaries, stinging, or burning. It is also helpful for skin that becomes sensitized from environmental factors like wind, cold, or sun exposure. If your skin tends to flush easily or never feels fully calm, this serum addresses those concerns directly.

What is acetyl tetrapeptide-40 and why is it in Circadia Chrono-Calm Serum?

Acetyl tetrapeptide-40 is a targeted peptide that helps reduce the visible appearance of redness and dilated capillaries by addressing vascular reactivity at the skin's surface. It is one of the primary active ingredients in Circadia Chrono-Calm Serum and is a key reason the formula is particularly effective for rosacea-prone skin. Unlike topical redness concealers, this peptide works to visibly reduce the underlying vascular appearance over time with consistent use.

Can Circadia Chrono-Calm Serum be used twice daily?

Yes, Circadia Chrono-Calm Serum is designed for both morning and evening use. Consistent twice-daily application supports the best long-term results, including reduced visible redness and improved skin resilience. In the morning, always follow with a broad-spectrum SPF to protect sensitized skin from UV triggers that can worsen reactivity.

Is Circadia Chrono-Calm Serum fragrance-free?

Yes, Circadia Chrono-Calm Serum is fragrance-free, which makes it appropriate for skin that reacts to added scent. Fragrance is one of the most common triggers for sensitive and rosacea-prone skin, so its absence in this formula is a deliberate and important formulation choice.

What marine-derived ingredients are in Circadia Chrono-Calm Serum and what do they do?

Circadia Chrono-Calm Serum contains Alteromonas ferment extract and Asparagopsis armata extract, both sourced from marine origins. Alteromonas ferment extract helps condition the skin's response to environmental stressors, supporting long-term resilience rather than only addressing irritation in the moment. Ascophyllum nodosum extract, a brown seaweed, contributes additional soothing and skin-conditioning benefits to the overall formula.

How does Circadia Chrono-Calm Serum address skin tightness and discomfort?

The formula includes sodium hyaluronate and glycerin, which together provide multi-level hydration that helps relieve the tight, uncomfortable feeling that often accompanies sensitized skin. Panthenol and beta-glucan add a calming layer that soothes active stinging and burning sensations. Together these ingredients help the skin feel noticeably more comfortable without relying on heavy occlusives or masking agents.

Does Circadia Chrono-Calm Serum contain antioxidants?

Yes, Circadia Chrono-Calm Serum includes tocopherol and Vitis vinifera seed extract, both of which provide antioxidant protection. Oxidative stress can worsen skin sensitivity and reactivity, so these ingredients play a supporting role in keeping the skin environment calmer over time. Avena sativa kernel extract also contributes additional calming and barrier-supportive benefits alongside the antioxidant ingredients.

Why buy Circadia Chrono-Calm 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 Circadia Chrono-Calm Serum is right for your skin? Get a free skincare consultation and one of our estheticians will personally guide you.