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Vitamin C and Hyaluronic Acid Serum
LIFE PLANKTON™ ELIXIR ANTI-AGING SERUM is rated 4.3 out of 5 by 405.
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Regardless of your age or the condition of your skin, Life Plankton™ Elixir provides the best ... Read full description

Vitamin C and Hyaluronic Acid Serum



Vitamin C and Hyaluronic Acid Serum


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Regardless of your age or the condition of your skin, Life Plankton Elixir provides the best anti-aging skincare with a new generation of anti-aging serum that acts on your specific skin concerns.

This hydrating serum defends, soothes and regenerates the skin, promoting the cell renewal process. Give your skin treatment routine a revolution with Elixir, an exceptional face serum infused with our Life Plankton™ ingredient at its highest concentration.

In 8 days, you'll be able to notice visible improvements in the quality of you skin. Aging skin looks smoother, more even and signs of aging are visibly reduced. This brightening serum should be included as the the first step of your skincare routine.

If you are looking for a renewed, bright skin, Life Plankton™ is the best serum for glowing skin; it will help regenerate all the vital functions of the skin to naturally restore its healthy state.

This antioxidant face serum will:

  • Reinforce the skin barrier by improving cell cohesion and barrier recovery
  • Stimulate skin cell renewal by ameliorating cellular renewal and encouraging the production of essential molecules
  • Preserve the skin structure by fighting the skin metabolism slowdown (induced by urban aggressions). 

Life Plankton™ Elixir is the best anti-aging serum for fine lines, being clinically proven to visibly reduce signs of aging such as wrinkles and make the skin firmer and stronger.

This hydrating serum features an innovative association with 2-sized biofermented hyaluronic acid:

  • Regular molecular hyaluronic acid to smooth skin & boost skin hydration
  • Fragmented hyaluronic acid to have a treatment effect and deeply penetrate & plump up skin

This is also the best brightening serum due to its highly stabilized Vitamin C for skin: a powerful antioxidant & brightening agent

If you suffer from skin sensitivity, you don't have to be concerned: this hyaluronic acid serum has been tested and its suitable for sensitive skin; with a formula infused with 5% Life Plankton™ at full strength, Life Plankton™ elixir possesses a non-sticky, transforming texture with a mat finish. Life Plankton™ elixir is a Vitamin C serum with a fast-absorbing texture that is incredibly light, fast-fusing and fresh. Always respectful of the skin, this face serum for dry skin is non-comedogenic and has a dermatologically tested formulation, which can be used even on the skin around the eyes..

Apply this firming face serum after using your favorite face toner and before starting your skincare routine.
1. Take 3 to 4 drops of Life Plankton™ Elixir skin serum
2. Warm the brightening serum in the palm of your hand and massage on to face, neck and décolleté.

A fundamental first step in any skincare routine, Life Plankton™ Elixir is a brightening serum that improves the efficacy of your skincare regimen that follows.

This hydrating serum reinforces skin protection:
Skin is strengthened 82 %*
Dermatologists clinically observed a skin’s resiliency enhanced by +31 %**.

It is also an important ally for anti-aging skincare and skin treatment:
Skin is firmer 82 %*
Skin appears healthier 83 %*

This face serum is ideal for skin regeneration:
Skin feels smoother 88 %* and
Dermatologists clinically observed a reduction of wrinkles by – 34 %**

Finally, this antioxidant serum visibly promotes skin transformation:
Overall appearance of skin seems improved 85 %* and
Dermatologists clinically observed an improvement by +29 %**

* Self-assessment – 34 women from 37 to 60 years old after 4 weeks.
** Clinical trial – 34 women from 37 to 60 years old after 4 weeks.

Biotherm products contains no parabens, no fragrance allergens and are enriched with Life Plankton™, pure thermal plankton extract that contains 35 nutrients, proteins, vitamins, amino acids, glucids, lipids and trace elements that help revive the skin’s vital functions and which are essential to its health.

aqua, bifida ferment lysate, glycerin, alcohol denat, dimethicone, hydroxyethylpiperazine ethane sulfonic acid, phenoxyethanol, octyldodecanol, sodium hyaluronate, caprylyl glycol, ammonium polyacryloyldimethyl taurate, vitreoscilla ferment, ascorbyl glucoside, adenosine, xanthan gum, peg-20 methyl glucose sesquistearate, dehyded ethylenediamine trisodium, pentylene glycol, faex extract, sodium hydroxide, sodium benzoate, peg-60 hydrogenated castor oil, hydrolyzed hyaluronic acid, salycyloyl phytosphingosine, tocopherol, parfum hyaluronic acid

*Please be aware that ingredient lists may change or vary from time to time. Please refer to the ingredient list on the product package you receive for the most up to date list of ingredients.



Get free shipping for any online order in the amount of $ 50 or more.

Shipping methods

Postes Canada


(orders under $ 50)



Delivery delay

2 to 5 working days

1 to 4 working days

1 to 2 working days


$ 7.95

$ 9.95

14,95 $


Orders will be processed within 1 to 2 business days.

Orders will be shipped Monday through Friday, excluding Canadian holidays. Packages are delivered without signature upon delivery.


Some products are considered dangerous. These are all aerosols or products containing alcohol, such as perfumes, liquid cleansers, toners, etc. These products must be shipped as standard because of air transport restrictions and regulations. If you have selected some of these products in your cart, the standard shipping will be applied automatically to your order at the time of payment.


Unfortunately, we are not able to cancel orders or change them once they are placed on the site. However, you can refuse the package at the door. If the packaging remains intact, Canada Post should not charge the return of the package to the shipper. If your package has already been delivered, you can request to return the unopened box to the shipper at your local post office, free of charge. If the box has been opened and / or reconditioned, you will have to pay the shipping costs. Please note that we do not offer to refund these shipping charges in this case.

To return an order to the shipper, please send the product (s) in question, by Canada Post with the expedited parcel service, with signature, to the following address:

L'Oréal Canada return department

3500 Douglas-B.-Floreani Street, Door 31-32

Saint-Laurent, QC, H4S 2B9

The refund will be made on your credit card within 30 days. You will receive an email when the credit is issued



At BIOTHERM, we believe we can leverage science to support nature. Healing skins and preserving the oceans is a part of our DNA.

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Rated 5 out of 5 by from Incredible serum This serum is very incredible. Very hydrating, feels very lightweight. It helps with skin firmness and leave my skin very smooth. I enjoy using this product every night
Date published: 2021-03-23
Rated 5 out of 5 by from It’s really good I really like this stuff a lot. I got it as a sample and fell in love with it about bought a 50ml bottle. Just finished my first bottle and bought two more. I recommend it to all of my friends and am told constantly since using this that my skin look hydrated and glowing. I’m really impressed!!
Date published: 2020-11-01
Rated 5 out of 5 by from Highly recommend if you're combination skin ! I purchased this serum half month ago and using it every morning and night! I could say this is the best serum I ever used, it won't be oily or like glue. It feel fresh and moisture! I will buy it again for sure.
Date published: 2020-09-19
Rated 5 out of 5 by from Summer skin serum First, I would like to thank Biotherm for sending me samples of the product so I can test it before bying it. I think it's very important that you have foreseen a testing of eight days so that the consumers can see actual results. The product is amazing! It's super light texture and it's discreet perfume, make it the ideal serum for the summer. It's easily absorbed by the skin without leaving any greasy nor heavy feeling. I also like the fact that they have used ingredients such as the probiotic bifida ferment lysate and the ultra hydrating glycerin, and that is paraben free. Thank you!!!
Date published: 2020-08-04
Rated 2 out of 5 by from No Results I have purchased it because ot was advertised as best seller and anti aging. Been using it daily for three weeks. not noticing any results except that it feels like a glue on my face.
Date published: 2020-06-24
Rated 4 out of 5 by from Excellent Serum Under Moisturizer I got a bunch of samples for this item and was surprised how much I like it. I typically have very dry, tight, sensitive skin. There is a scent, which I usually avoid, but it is tolerable. It spreads easily over the skin and makes it soft and plump. I use only a few drops for my whole face/neck, to make it last; I start at my cheeks (where it is driest) and then spread outward from there. After a couple minutes I seal it in with my face cream, which just makes both work so much better. I've used so many serums and creams and my face always gets tight afterward - but not this one! I am going to take the plunge and buy a bottle. Hopefully it is just as good as the samples, because it is hella expensive and I am not made of money.
Date published: 2020-06-18
Rated 1 out of 5 by from So drying I ordered this on March 30th and got some samples of the product at the same time. I decided to use the samples before opening the product and after the 8 day trial samples I noticed my skin was so dry! When I looked at the ingredients, I saw that there was alcohol denat, hydroxyethylpiperazine ethane sulfonic acid and sodium hydroxide which are ingredients that can be drying to the skin. Definitely do no recommend if you naturally have dry skin. My cheeks feel so tight and itchy now. I will returning this product.
Date published: 2020-04-14
Rated 5 out of 5 by from Skin Perfecting! I love this serum! I use 3 drops after my essence and before my target serum. It has definitely helped Perfect my skin: my skin is more plump, smooth, hydrated and Glowing! This will remain a staple in my Skincare Collection!
Date published: 2019-12-29
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