Support
Frequently asked questions
Everything below is the answer we would give you if you rang. If your question is not here, email us or ring 01288 272800. It reaches Richard, who formulates the products.
Choosing
How do I know which skin type I am?
The skin type finder asks two questions about how your skin behaves and points you at one of five types. It takes a couple of minutes.
If you would rather work it out yourself, the short version is this. Skin that feels tight and flakes is dry. Skin that shines by mid-afternoon is oily. Skin that stings or reddens easily is sensitive on top of whichever of those it is. Balanced is the one that mostly behaves itself.
Two questions, five types
Takes a couple of minutes.
What is the difference between Flow, Core and Deep?
How much cold-pressed oil each one carries. In the current formulations, that is the only thing that changes.
Flow is over 9% plant oils, sinks in quickly and is made for the face. Core is over 14%, richer and more cushioning, made for the body. Deep is over 19%, the substantial one for hands, elbows, knees and feet.
Within a skin type, all three share the same oils, the same prebiotic and the same pH. You are choosing by where you are putting it and how rich you like it to feel.
FLOW
9%+
Sinks in quickly. Made for the face.
CORE
14%+
Richer and more cushioning. Made for the body.
DEEP
19%+
The substantial one for hands, elbows, knees and feet.
My face and my body are not the same. Do I need two?
You may well want two. Skin on the face and body behaves differently, and Flow on the face with Core on the body is a sensible pairing. Nothing in the range conflicts, so mixing is fine.
If you are starting with one, buy for your face. It is the skin you will notice first.
Link to this answerIs it suitable for sensitive skin?
Two of the five types are built for it, Dry Sensitive and Oily Sensitive. There is no synthetic fragrance anywhere in the range.
We publish every ingredient and every percentage on every product page, so if there is something your skin has fallen out with before, you can check for it before you buy rather than after.
I have rosacea or eczema. Can I use it?
Our moisturisers are cosmetics, so they are not a treatment for any skin condition. Dry Sensitive and Oily Sensitive are formulated for skin that tends to dryness, redness and reactivity, and every ingredient and its percentage is published, so you can check it against anything your skin has reacted to before.
If you are under the care of a doctor or dermatologist, check with them first, and patch test before first use.
Link to this answerUsing it
How do I use it?
Warm a small amount between your fingertips and press it into clean skin, morning or night or both, before any make-up or sunscreen. On the body, massage it in until it disappears.
Small amount is the operative phrase. These are concentrated, and it is easy to use twice what you need at first.
This much, for a face
One short press of the pump. If it is still visible on the skin after a minute, it was too much.
How long before I notice anything?
You will feel the moisture as soon as it goes on. Anything longer-term takes more time, because skin renews its surface roughly every four weeks, and more slowly with age. You are waiting on new cells rather than changing the ones already there.
Give it a fortnight to see how it suits you. That is why the trial runs for two weeks.
Link to this answerCan I use it under sunscreen or make-up?
Yes. Flow absorbs the fastest, so it suits wearing under both, and Core is not far behind. Give it a minute to absorb before the next layer goes on.
Link to this answerShould I patch test first?
If your skin reacts easily, yes. A small amount on the inner forearm, left for 24 hours, tells you most of what you need to know. If your skin is generally uneventful, you can skip it.
Link to this answerHow long does a bottle last, and how long does it keep once opened?
A 150ml bottle used twice a day on the face lasts around three months. On the body it goes faster, because there is more of you.
Once opened, use it within six months. That is the small open-jar symbol on the bottle with 6M beside it. The batch number and date are on the base.
- On the label
- Open-jar symbol with 6M beside it. Six months once opened.
- On the base
- Batch number and the date it was made.
What is in it
Why do you publish the whole formulation?
So you can see exactly what you are putting on your skin, and how much of each thing. Every product page carries every ingredient and its exact percentage, in a table, each one linked to a page explaining what it is doing and what the evidence behind it says.
An ingredient list tells you what is in a product. The percentage tells you how much.
Does it have a scent?
A faint earthy one, from a single ingredient. Vetiver root oil is a natural essential oil distilled from the roots of a grass, and every product carries it at a tenth of a percent.
There is no synthetic fragrance in the range, and no "parfum" catch-all standing in for components we have not named. If your skin reacts easily, patch test before first use.
Link to this answerWhy is there no SPF in your moisturisers?
Because a moisturiser goes on too thinly to give the protection an SPF number promises. The SPF on a label is measured with 2mg of product on every square centimetre of skin, which is a thick layer. Research at King's College London found that people apply less than half that, and at that thickness an SPF 50 sunscreen gave at best 40% of the protection on its label. Our moisturisers are concentrated and made to be used in small amounts, so an SPF added to them would fall shorter still.
Sun protection also needs topping up. The NHS advises reapplying sunscreen every two hours, and after swimming, sweating or towelling. A moisturiser you put on at breakfast is not something you reapply through the day, which is why Cancer Research UK advises using a sunscreen even when your moisturiser contains SPF.
So our moisturisers do one job, and you choose how to handle the sun. That might be a sunscreen of SPF 30 or higher with at least four-star UVA protection, a mineral one based on zinc oxide if you prefer a simpler formula, and shade, a hat and covering clothing, which the NHS recommends alongside sunscreen. Put the moisturiser on first and give it a minute to absorb before your sunscreen goes on. Nothing in our products protects against the sun.
Link to this answerWhat keeps it from going off?
Two things keep each bottle sound. The first is the preservative, a ready-made blend of sodium benzoate and gluconolactone. Sodium benzoate does the preserving, and gluconolactone helps it work. The second is the pH. Sodium citrate buffers the cream at pH 5 to 5.5, close to the skin's own. At the end of making, the pH is checked and fine-tuned with a little sodium hydroxide or citric acid.
A water-based cream with nothing preserving it can grow mould and bacteria within days.
Link to this answerIs it vegan, and is it tested on animals?
Yes, the range is vegan. Every ingredient is plant, mineral or ferment derived, or made in the lab as an exact match for one that is, and nothing in it comes from animals. Testing cosmetics on animals has been banned in the UK since 1998, and the only person our products are tested on is the chemist who makes them.
We hold no certification for either at the moment.
Is it organic?
Many of the oils are, and they are marked on every formulation table. A star means organic, a caret means cold-pressed, and most of the plant oils carry both. A hash means upcycled, made from a by-product of another process.
The finished products are not certified organic. Certification covers the whole product and the whole process, and we have not been through it.
Where is it made, and where does the seaweed come from?
Everything is made by hand, in small batches, in Welcombe on the north Devon coast. The bladderwrack in every product is the same Atlantic seaweed species that grows on the rocks below Welcombe. Ours is a cold infusion in sunflower oil, made in the UK by O&3.
Link to this answerWhat is all the microbiome talk about?
Your skin carries its own community of bacteria and fungi, and the research suggests skin does better when that community is supported rather than stripped.
Two ingredients are there for it. Inulin, a plant prebiotic, feeds the microbes already on your skin in laboratory studies, and a chlorella extract has supplier evidence for holding back the less welcome species while sparing the helpful ones. Beyond those, nothing in the formula is there to strip, and every finished product is adjusted to slightly acidic (pH 5 to 5.5), the level the skin's residents prefer. Of everything here, that has the strongest evidence behind it.
Skin microbiome science is young, and much of it is still in cell culture rather than on faces. The skin microbiome page sets out what the evidence supports and where it runs out.
We review the published research rather than run our own, and claim only what it supports. Read the science.
Buying
What if it does not suit me?
Give it two weeks. If it is still not right, we will swap it for a different skin type or refund you, whichever you prefer, any time up to 60 days after your order arrives. Return postage is on us, and you send back whatever is left in the bottle.
Sometimes we will refund you and tell you to keep it. One claim per product, per customer, and the full terms are in the refund policy.
Link to this answerDo you do samples or smaller sizes?
Not at the moment. The Two-Week Trial is there for the same reason: if a product does not suit you, we will swap it or refund it.
Link to this answerWhat does delivery cost, and how quickly will it arrive?
Standard delivery is £5.99, and free on orders over £40. Express is £7.99, free over £80. If your postcode starts EX22, EX23 or EX39, orders over £20 come free and we bring them to you ourselves.
Everything is made by hand in small batches. If what you have ordered is in stock, we dispatch within one to two working days. If it is not, we make it for you and dispatch within five working days. From dispatch, Royal Mail delivers Standard in three to five days and Express in one to three. We deliver across the UK and nowhere else for now, and the full details are in our delivery policy.
Standard
£5.99
Free over £40
Express
£7.99
Free over £80
What is the bottle without a pump, and why is it only a pound less?
It is the same 150ml aluminium bottle with the same cream in it, without the pump. The pump is the only plastic part, and it is made to move from bottle to bottle.
A pound is roughly what the pump costs us, so the saving is the pump coming off the price rather than a reward for buying less.
If this is your first order, buy the version with the pump. A bottle on its own is one you cannot easily get the cream out of.
With the pump
Bottle only
Why aluminium?
It can be recycled again and again without losing quality, and recycling it takes around 5% of the energy needed to make it new. The pump is bamboo and plastic, and is made to be reused.
Do you sell anywhere other than online?
Not yet. We are talking to a handful of independent shops in north Devon. If you run one and would like to stock us, email us.
Link to this answerStill not answered?
Email store@biotaderm.com or ring 01288 272800. It reaches Richard either way.