Glides on easily. Hassle free. Waiting for the results as have only been back on it for about a week.
The Biology Serum™
9 Vials (40.5mL)
£165.00
Regular price
Sale price
£165.00
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£4.12 / day
Topical Skin Supplement
The Biology Serum™
£165.00
Regular price
Sale price
£165.00
Skin that looks the way it evolved to
Clinically tested
Preservative-free
6 skin-native ingredients
Made in labs
Designed to support the skin’s natural ability to hydrate, protect, and regenerate - with immediate hydration and 397 naturally-occurring proteins.
- 397 active proteinsAnti-aging, anti-inflammatory, anti-oxidative
- Immediate hydrationLightweight, soothing, and quick absorbing
- 24% gentler than waterPreservative-free - unbeatable for sensitive skin
- Supports cells, barrier, and microbiomeFoundations of day-to-day skin function
- 91.3% agreed skin looked healthierAnd more resilient after just 4 weeks of use
Details
- Six evolutionary ingredients support the skin’s evolutionary capacity to hydrate, protect, and regenerate resulting in skin that works and looks the way it evolved to.
- For a healthier complexion that’s smooth, soft, and even thanks to your skin working the way it evolved to. With a stronger barrier, healthier microbiome, and hydrated cells.
- Cool and soothing serum quickly absorbed by skin thanks to it’s lightweight hydration.
What it supports
The Biology Serum’s design intrinsically supports a variety of skin concerns - including:
- Skin prone to dehydration or dullness
- Skin prone to sensitivity or redness
- Skin showing premature signs of aging
- Skin showing loss of firmness, worse texture, or uneven tone
- Skin exposed to environmental or product-related stressors
- Skin prone to outbreaks
- Skin that’s already healthy
How it works
1. Supplement
The Biology Serum delivers immediate hydration and 397 naturally-occurring proteins. They are documented to have anti-inflammatory, anti-aging, and anti-oxidative properties. To ensure the active proteins remain potent and your skin undisrupted, the formulation is 24% gentler than water and contains no wide spectrum preservatives.
We designed The Biology Serum to be entirely compatible with skin. Sitting at pH 5.2 (the optimal pH for female skin) and made for the skin topography. By using the smaller molecular salt form of HA, we deliver actives deeper than any other skincare product.
2. Support
Unlike skincare, we don’t try to force a specific result, we let your skin use what we supply it with when and where it needs it. By providing a comprehensive support package for the very systems that underpin skin function - we let it do all the work.
Hydrated cells, healthy microbiome, strong barrier, and supported natural moisturising factor production are all supported by the formulation’s six ingredients. These are very the systems that evolved to respond to stressors and demands through connective signalling pathways.
How it's made
Making The Biology Serum begins with the best ingredients - that’s why we only work with pharmaceutical-grade suppliers.
Our all-women team of scientists handle each stage of the production process with precision - using the best available equipment and packaging. The cryovials that hold The Biology Serum are sourced from Greiner. They’re usually reserved for cutting-edge research and capable of withstanding temperature of -196c.
In an controlled GMP grade A environment, we prepare the serum in small batches and hand-fill each vial. This ensures there is no risk of contamination and it’s what enables us to forgo preservatives. The product then remains refrigerated while it’s transported to you.
How to use
Step 1. Keep only one vial open at a time - once opened a vial lasts 10 days.
Step 2. Measure out around 0.5ml - use the vial’s markings.
Step 3. Apply the serum to the desired area - just as you would any other product.
Step 4. Use twice a day for best effect - AM and PM.
Step 5. Return to your fridge.
The next step in skin evolution
Our skin evolved for a world that no longer exists.
Despite widespread skincare use - 70% of people today have sensitive skin.
Building on our work pioneering autologous stem cell therapy, The Biology Serum™ is designed to close the gap between skin evolution and modern life.
For visibly healthier skin. Not a temporary fix.
How we did it
Made by scientists. Designed by evolution.
User data
What to expect in 4 weeks
Agreed serum did not irritate upon application
Agreed skin felt instantly hydrated
Agreed skin felt more resilient
Agreed skin looked healthier
User perception survey, n=36, aged 18 to 65, including those with sensitive skin, evenly split between men and women. Data on file.
Testimonials
Since using it my face has really settled down. It used to be quite red and patchy. I feel the product is really good at toning my skin down, evening it out, and also providing me with quite a bit of moisture.
Sandra B.
Since using The Biology Serum™ I have noticed a considerable reduction in dryness and my skin feels a lot smoother and more supple! Quite remarkable as I would normally re-apply my moisturiser 2-3 times a day, but I haven't applied any other moisturiser and my skin feels totally moisturised.
Nicky L.
Just six ingredients
A formulation your skin evolved alongside. You won't find skincare more compatible with your biology.
Distilled Water
4.4 billion years old - clinical grade sterile water, protecting the potency and stability of every other ingredient.
Glycerol
3.8 billlon years old - skin-native humectant that restores gradient control of water movement, keeping hydration balanced at the cellular level.
Trehalose
3.5 billion years old - stabilises skin proteins under stress and clears damaged cells through autophagy, supporting cellular renewal.
Sodium hyaluronate (low MW)
500 million years old - a dual-molecular-weight layer that holds actives, slows water loss, and buffers against pollution.
LSP
310 million years old - milk-derived proteins, peptides, amino acids, vitamins, and minerals that restore & enhance skin function to improve appearance.
Lactoferrin
150 million years old - iron-chelating glycoprotein that regulates the skin microbiome and calms inflammatory redness.
Preservative-free
Small, hand-filled batches made in a GMP grade A lab and chilled. Zero contamination and zero preservatives. Protecting your skin and the potency of the formulation.
Meet the experts
Anna Priadka
Award-Winning Beauty Founder + Makeup Artist
Global Artist for NARS and eighteen seasons backstage at the New York, London and Paris Fashion Weeks. She knows what skin needs to look its best.
Dr Mohi Rezvani
Cell Biologist
Reader Emeritus at the University of Oxford, where he led a research institute, with 40 years in stem cell and extracellular vesicle research.
Dr Gordon Cohen
Aesthetic Physician
An aesthetic physician trained in the United States and Europe, with two decades leading aesthetic practice and a focus on regenerative approaches to skin.
Dr Sean Moodley
Plastic & Reconstructive Surgeon
Dual-qualified in General Surgery and Plastic & Reconstructive Surgery, Sean integrates regenerative medicine, stem cell therapy and longevity science into his work.
Dr James Laporta
Integrative Medicine Physician
Founder and Medical Director of Sanctura, an integrative medicine practice with clinics in London and Cape Town.
Dr Donald Straughan, OBE
Pharmacologist & Toxicologist
Head of Pharmacology at the School of Pharmacy, today part of UCL, then at Glaxo, today GSK. Later one of the authors behind the Animals (Scientific Procedures) Act 1986, recognised with an OBE. His work led to the world's first ban on cosmetic animal testing. Actevna's scientific founder, Richard Straughan, is his son.
Frequently asked questions
Can I use other skincare products?
The Biology Serum™ is designed to replace a full skincare routine - and the longer you use it, the less your skin will need anything else.
For those who want to use it as part of a routine, it works beautifully as a hydrating, protective layer beneath makeup or any other products you enjoy - just know that your results might take longer, or feel less complete.
How long will it last me?
An order of 9 vials can last anywhere between 1 to 2 months, but this varies by use!
Each vial, once opened, must be discarded if not used within 10 days.
How much do I apply?
For optimal results, we recommend applying .5mL twice a day - but you can use and apply however much feels right. The side of the vial has graduations with mL markers, so you can see how much you're using.
It can take a few applications to get the hang of it, and find the amount that's right for your skin.
Can I travel with it?
You can travel with unopened vials.
How to apply?
To apply, either:
Unscrew vial cap and pour serum out into your hand to achieve the amount that feels right to you. Apply to your face. It may take some getting used to until you get the right amount each time.
OR
Unscrew the vial cap, press your index finger pad down over opening, and briefly invert vial upside down. There will be serum on your finger pad. Apply to your face, then repeat until satisfied with coverage
Ensure vial is returned to fridge after use.
See the following video:
Where do I keep my vials?
Because we make The Biology Serum™ fresh without preservatives, your vials need to be kept fresh in the fridge. Actevna® vial holders are designed to fit in a fridge door shelf.
Customer Reviews
Overall rating: 4.7 / 5 from 27 reviews.
I love this serum! It’s lightweight , pleasant , and gives an immediate lovely sensation on the skin . Skin looks luminous and healthy.
Good
It’s a wonderful feeling having skin deeply hydrated all day every day as I would after a facial and knowing that serum is completely free from any preservatives. Getting compliments now quite often on the healthy glow from women much younger than I am.Great product. Anna
I feel that I don't have to hide behind makeup, as my skin has never looked better. Also, my outbreaks are now controlled. I've been able to switch my foundation for work to a much lighter one...
This is the first product that has ever worked properly for my sensitive skin. Expensive, but can make it last for a while. cannot reccommend highly enough !
My dryness and red patches have gone down. Whatever it is, it works
Day 3, and my skin is luminous and radiant :)
My ex-husband (#2) said my skin looks great. Coming from him, that’s a massive compliment. I’m running out, so it’s time for more.
It’s been about two months now, and I’m a big fan. I can feel it helps with wrinkles, and I love how quickly it absorbs. When I put on makeup, it’s so easy, and it doesn’t look shiny.
I am someone who since a very young age has had very oily skin. Until recently I had a 7 step skincare routine full of cleansers moisturisers and serums. I was told Actevna would help me reduce the number of products I use, and half a year later after starting to use it it seems to be true. Over time I have felt less and less of a nee to apply other products to my skin. My tone and overall complexion seems better, and my skin has become much more low maintenance.
Two days ago I started using the biology serum. The texture is light and leaves my skin softer and more hydrated, which is good especially now that the cold weather is here. After a few applications, I noticed fine lines are less visible, and my complexion looks brighter and more even. It’s delicate on my skin nice to use.
I recently visited my facialist for a dermaplane treatment, and she mentioned that my skin barrier looked calm and not inflamed. While she said my skin appeared duller than usual, I think this is because I’m used to the ‘glow’ from using multiple acids and retinoids. As I’ve been told, it’s likely my skin returning to its natural state, which feels healthier overall.
My skin isn’t as dry anymore, and my keratosis pilaris has improved a lot. Overall, my skin tone looks much better.
My skin feels so much softer and healthier now. That tight, dry feeling I used to have is gone.
My acne seems a bit better, but it does fluctuate over time. Even so, my skin feels more balanced. Expensive though. Will depend how quickly you get through the vials.
I have fewer fine wrinkles now, and my skin feels smoother overall. Even my pores look healthier.
I’ve noticed relief from eczema and flaking symptoms that I’ve struggled with for years. Only wish the vials were a bit easier to use. It’s much easier to use consistently and has helped my skin reach a level that is easier to maintain.
My dryness and red patches have calmed down so much. I wasn’t expecting this to work so well, but it really does.
My skin feels hydrated and soft to the touch, with a nice glow, especially with the Biology Serum. My complexion and tone are more even now, and I’ve had compliments on my skin.
Purchased this for my husband, who’s prone to shaving rash. This seems to have solved the irritation and significantly improved his skin. I used some myself and found it very hydrating and light.
I love Actevna. It’s sorted my skin problems—periorbital dermatitis, dry skin after showering, all gone. I don’t weep from my makeup near my eyes anymore. I plan to keep using it.
As someone with sensitive skin, I’ve always struggled to find products that don’t cause irritation. Actevna® has been a game changer for me. It’s very gentle and soothing, and my skin feels amazing.
People keep asking whether I’ve had anything done because my skin seems to be glowing, and I haven’t even been using it that long! My skin tone has improved significantly, and my skin feels much more moisturised. I’m thrilled with the serum and am now a loyal customer. Would recommend giving it a go.
Introduced to me by my son. For years I've struggled with an itchy back and some dry patches on my face. At my age I didnt expect to see a lot of change, but I've noticed a significant improvement in the itching on my back. Though the dry patches on my face still need some time, but am hopeful for the results.
I’ve had numerous colleagues ask me what I’m using recently, and even a few compliments at the gym, so it’s definitely working. The unboxing was quite unique. Having to keep it in the fridge took some getting used to, but I understand it’s necessary to make it without preservatives and stop it from going off.
It is a very different experience from different skincare products I have used in the past. At home, it feels convenient having it in the fridge and a lot quicker that a normal routine, and I like how it feels on my skin. To soon to say whether it's helped my breakouts though.