From the Ocean to Your Skin:
Instant Tensor Serum

Product FAQ | Product Facts

Cerule Skin: Instant Tensor Serum

Instant Tensor Serum is a natural concentrated anti-aging skincare product, suitable for all skin types. It combines the power of an ultra-tightening serum with the comfort of a moisturizing serum. Its signature fragrance reveals a delicate aromatic scent.

Peptides and Brown Seaweeds are powerful anti-aging ingredients that smooth, reshape and firm the skin instantly. Hyaluronic Acid (LMW) and Fucocert deeply moisturize while its isotonic formula with pure sea water revitalizes and tones the skin. Red seaweeds and Barley floral water remineralize and regenerate for visibly younger skin and a brighter complexion.

Lifting, Firming, Plumping, Revitalizing, Moisturizing

Instant Tensor Serum is a very effective formula and has an immediate tightening effect filling wrinkles and fine lines, plumping the skin, refining the texture of the skin and reducing skin sagging; it also deeply moisturizes and softens the skin.

What Does Instant Tensor Serum Do?

Instant Tensor Serum is an intensive skincare product that is concentrated with unique ingredients to provide immediate beauty results and long-term skin benefits. Delivers dramatic, visible results in 5 minutes.

Instant Tensor Serum penetrates deeply through the multiple layers of the epidermis and is designed for best efficacy to be used with the CC Cream that penetrates into the upper layer. For optimum results, use with a daily moisturizer or night cream to increase overall effectiveness.

French Biomarine Skincare

Cerule Skin products are made with Pure Seawater and Algae from the island of Molene. Molene belongs to the Iroise Islands and seas Biosphere Reserve.

Molene Island
Located on the coast of Brittany in France, this reserve is almost 100,000 hectares wide. There are strong currents, high tides and the water can reach 20 meters in depth. This reserve has significant biodiversity, encompassing more than 600 species of algae, large sea bird colonies, and populations of basking shark and gray seal.

The island of Molene is a marine area protected by UNESCO, and also by the Regional Natural Park of Armorique, the Marine Park of Iroise, and the European ecological network Natura 2000.

Natural Biomarine Skincare

All our ingredients are harvested according to quality criteria and in respect of nature and the environment.

All our ingredients come from natural resources, harvested in respect of their renewal and their biodiversity.

All our formulas are developed with:
98.5% of ingredients coming from natural origin
Petrochemistry-free, paraben-free
GMO-free, synthetic fragrance-free
None of our products are tested on animals

Efficient Formulas

New-generation active ingredients
Isotonic formulas
Formulas scientifically tested by in-vitro and in-vivo tests

French Quality

Our skincare products are made in Brittany, France.


Our formulas are isotonic, made with pure seawater from the Atlantic Ocean in Brittany.

Collected from a protected area from outside pollution, the sea water is filtered of all impurities and sterilized by microfiltration.

Pure Seawater revitalizes and remineralizes the skin by a synergic diffusion of minerals and trace elements.

Seawater at a perfect degree of salinity creates an isotonic environment for cells. Thus the concentration of water is similar in solute to that of the membrane of our cells.

Cells will recognize the same concentration and take what they need in minerals and trace elements for an optimum effect. Through biomimicry, seawater increases the product's effectiveness by promoting the diffusion of active ingredients through the skin barrier.


Our seaweeds are Ecocert certified.

Ecocert certification
The seaweeds used in Cerule Skin products are harvested by hand according to tradition, within the biosphere of Molene Island.

Cerule Skin Seaweeds harvested by hand

Cerule Skin Seaweeds are harvested from the Molene Biosphere
They are then transformed into powder and aqueous or oily extracts within 24 hours after having been harvested, so it preserves all their freshness and nutrients. The extraction method has a specific and ecological process. All the algae types used in our products are ECOCERT certified.

Instant Tensor Serum Reviews

Carol F
"I saw instant results with the Instant Tensor Serum, but now after using it for over two months, most of my wrinkles are gone, tightened pores, plumper skin and my face shape is even changing.

My skin has more moisture and I find now I don't need to use it all over my face.

The CC Cream is amazing! It's super hydrating, evens out skin tone. Even though it's not a moisturiser, it has the same effects, it makes a beautiful primer under your make up and give a luminizing effect, meaning your face glows.

Within 5 minutes of applying the Instant Tensor Serum, there was a noticeable difference. Here's my before and after photos, which were taken within 5 minutes of each other!"

Sandra B (a Beauty Therapist)
"This is a lift for the whole face in a few minutes. It is an incredible product and I haven't seen anything like this in all my years in the Beauty industry. A friend did a test on her skin, and the result after leaving the serum on for 5 minutes is extraordinary. It has an immediate tightening effect: fills wrinkles and fine lines, plumps the skin, refines the texture and fights skin slackening. It also moisturises deeply and envelops the skin with softness."

Ingredients from Nature, backed by Science

Peptides (Wheat protein complex)
The Wheat protein complex contains hundreds of amino acids that form hydrolyzed proteins called peptides.

Peptides (Wheat Protein): Immediate tightening effect, reduces wrinkles and fine lines, refines skin's texture
Peptides are the latest technological advancement used for their revolutionary antiaging effects. Peptides bind to the skin to form a smooth and elastic film that tightens the epidermis for an immediate firming effect. Peptides also strengthen the resistance of the skin which helps prevent the effect of loose and sagging skin.

Brown Algae (Sphacelaria scoparia)
This species of brown algae activates collagen synthesis for a remodeling and firming effect.

Brown Algae: Reshape the facial contours, reduces wrinkles and fine lines
Hyaluronic Acid (Low molecular weight)
Hyaluronic acid is a micro-molecule that penetrates into the epidermis layer of skin providing deep moisture and a plumping effect.

Hyaluronic Acid: Mositurises deeply, plumps the skin, fills wrinkles and fine lines
Hyaluronic acid occurs naturally in the body and is one of the most important elements that form the structure of skin. The function of Hyaluronic acid is to attract and retain water in the skin by forming an elastic gel; this gel contains up to 20 times its weight in water.

The quality and quantity of hyaluronic acid our body produces is diminished due to the natural process of aging accompanied by external factors like UV radiation and pollution; eventually the skin starts to lose its elasticity and wrinkles begin to appear. The addition of hyaluronic acid to the Instant Tensor Serum hydrates and plumps the skin resulting in a rejuvenated and revitalized appearance.

Fucocert (Plant origin Polysaccharide from organic certified agriculture)

Organic Fucocert is composed of polysaccharides from plant origins that provide excellent moisturizing and soothing effects.

Fucocert: Mositurises deeply, soothes immediately with intense comfort, anti-aging action
Polysaccharides are sugars that exist naturally in the skin and play an important role in cellular communication; they also help fight dehydration by forming an aqueous film to help reduce water loss. Fucocert stimulates cellular renewal and contributes to visibly younger skin.

Pure Seawater (Isotonic)
Pure seawater revitalizes and re-mineralizes the skin by a synergistic diffusion of minerals and trace elements. Collected from a protected area without pollution, the seawater is filtered of all impurities and sterilized by microfiltration.

Pure seawater: Revitalizes, soothes, protects the skin
Seawater contains a perfect degree of salinity and creates an isotonic environment similar in solution to the membrane of our own cells and thus creates a perfect symmetry for the cells to absorb the minerals and trace elements they need for optimum balance and health.

Through this effect (biomimicry) the seawater increases the effectiveness of the product by enhancing the infusion of active ingredients through the skin barrier.

Red Algae Gel
Red algae gel contains Chondrus crispus extracts, also known as Sea Lichen. Sea Lichen is a red algae that lives on coastal rocks and is rich in sulphated polysaccharides, essential amino acids, vitamin C, magnesium, iodine, iron, copper and zinc. Red algae gel moisturizes, soothes, heals, softens, re mineralizes and brings radiance and brightness to the skin.

Red Algae Gel: Skin looks visibly younger, brighter complexion
Barley Organic Floral Water (from organic certified agriculture)
Barley organic floral water is a concentrate of nutrients rich in vitamin B, carotenoids, mineral salts, essential amino acids and trace elements.

Barley Organic Floral Water: Brighter complexion
This concentrate contains nourishing and revitalizing properties that regenerate the skin for a visibly brighter and more youthful appearance.

100% risk free guarantee Our Guarantee is simple: If you're not satisfied with our products for any reason, please contact us immediately and we will either provide a replacement, or a refund, your choice.

If requesting a refund, simply contact us within 30 days of purchase. We are willing to work with you to ensure your satisfaction!

Order now 100% risk free

Instant Tensor Serum Frequently Asked Questions

What are the ingredients in Instant Tensor Serum?
Peptides (wheat protein), Brown Algae (sphacelaria scoparia), Hyaluronic Acid (low molecular weight), Red Algae Gel, Fucocert, Pure Seawater, Barley Organic Floral Water.

What skin types are suitable for Instant Tensor Serum?
The Instant Tensor Serum is formulated for all skin types from very dry, dry, normal, sensitive, combination to oily skin.

When do I apply Instant Tensor Serum?
We recommend applying the Instant Tensor Serum in the morning and evening.

In the Morning:
On a perfectly clean face and neck, start your Cerule Skin application ritual with the Instant Tensor Serum and then apply your CC Cream.

Note: This formula is SPF free. We advise applying to your face a 30 to 50 SPF if you are going out in the sun. Apply the SPF after the Instant Tensor Serum and before the CC cream.

For very dry to dry skin: Apply the Instant Tensor Serum followed by a daily moisturizer adapted to your skin type. You can then apply the CC Cream.

For normal or sensitive skin: Apply the Instant Tensor Serum and then the CC Cream.

For combination to oily skin: Apply the Instant Tensor Serum. If you find the Serum makes your skin too shiny, apply the Serum only to the area around the eyes and contour of the lips. Follow with the CC Cream all over the face as it has matte-like properties.

In the Evening:
Apply your Instant Tensor Serum and then apply a night skincare product adapted to your skin type.

How do I apply Instant Tensor Serum?
Collect a few drops of the Instant Tensor Serum with your fingertip and apply to the face, around the eyes and the neck with smoothing movements. The Serum is applied gently without wrinkling or pulling on the skin The light texture of the Serum is rapidly absorbed in the epidermis.

Can the Instant Tensor Serum be used by both men and women?
Yes! Both men and women will benefit from the Instant Tensor Serum. The fragrance is pleasant for both men and women and the formula does not leave a shiny or pearly effect. An additional benefit for men is to apply Instant Tensor Serum apply as an after-shave care to quickly soothe the skin weakened by the blade.

What age do you recommend starting the Instant Tensor Serum?
We recommend starting to use the Instant Tensor Serum between 25 to 35 years old to prevent the appearance of skin-aging related signs.

What is the shelf life after opening?
Shelf life is up to 6 months after opening.

Is Instant Tensor Serum certified organic?
Instant Tensor Serum is awaiting certification by Ecocert Cosmos Naturel. The Serum contains 98.5% natural ingredients of which 20% are from organic agriculture. The remaining 1.5% consists of the fragrance and preservative.

Are the algaes used in the formulas certified organic?
Yes. All the algae used in our products are Ecocert certified. The seaweed ingredients in the Cerule Skin line are harvested by hand according to tradition within the biosphere of Molene Island. The seaweed is then transformed into powder and aqueous or oily extracts within 24 hours after harvest to preserve all bioactivity and nutrients. The extraction method has a specific and ecological process.

The seawater and algae are harvested from the pristine area in Brittany France which is a protected area by Unesco.

Does the Instant Tensor Serum contain any allergens?
The allergens in the Instant Tensor Serum are considered low risk and are in the fragrance that includes: Limonene, Linalool, Benzyl salicylate, Citral, Geraniol (allergens naturally occurring in plants). The preservative in the Serum is Potassium sorbate and is considered a very low risk allergen.

Does the Instant Tensor Serum contain any animal products?

Does the Instant Tensor Serum contain parabens?

Does the Instant Tensor Serum contain any silicon?

Is Instant Tensor Serum suitable for pregnant women?

Where is the Instant Tensor Serum produced?
Instant Tensor Serum is formulated and created in Brittany, France.

* These statements have not been evaluated by the Food and Drug Administration. This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Cyactiv Joint® is a product of USA
Distributed by: Cerule LLC
Irvine, CA 92612 USA