Laboratory tested for accuracy
Includes D3 and D2 breakdown
Follow up dosage recommendations
Who Should Test
Vitamin D Test Kit
Why Testing is Important
Deficiency is common in the UK
We’re obsessed with the weather for good reason! We rarely see enough sun so around 75% of us are deficient.
The health benefits are enormous
Vitamin D has a huge impact on immune health and lots of new research shows it could be one of the most important nutrients.
Know your ideal dosage
Vitamin D toxicity (too much) is really harmful so it’s important to know your level if you’re supplementing. But taking enough is also key.
Are you absorbing Vitamin D?
You may be taking a supplement but still have low levels. This is an indicator of a health issue which is important to check out. Genetics can also play a role in this.
For people & planet, by people
100% UK family owned
We’re a small, founder-led business with no investors and zero association with big corporations. We run the business with our customers at its heart.
Stellar customer service
You’re the most important part of our business and we’ll always look after you. You’ll never read a bad review about our customer service.
Sustainable, of course
From MSC certified marine collagen and sustainably sourced omega-3, to compostable and recyclable packaging. A UK & Norway based supply chain, we do business with care and consideration.
- Jessica R.Verified BuyerI recommend this productHow old are you? 25-34What is your gender? FemaleWhy do you take Bare Biology supplements? General wellbeing , Mental healthRated 5 out of 5 stars14 hours agoSo worth doing.
Easy to use, quick results. Helpful report with scale showing number/level needed for 'optimal' health, so important and much more useful than doctors or other sites which say very low levels are 'sufficient' yet you still feel unwell! I'm so pleased I used this test before supplementing as I was very deficient, I'd rather know this and dose accordingly than just guess. I'd been struggling through a recent patch of bad anxiety, truly believe this test and subsequent supplementation has been one of the things to help me get well again. I will use again to monitor my vit D levels in the future.
- Jade F.Verified BuyerI recommend this productHow old are you? 25-34What is your gender? FemaleWhy do you take Bare Biology supplements? General wellbeing , Eye healthRated 5 out of 5 stars1 week agoHelpful
Very helpful, had my levels tested 2 years ago, they're still low but have gone up which is good to know.
- Yasmin S.Verified BuyerI recommend this productWhy do you take Bare Biology supplements? Mental health, Immunity support , Skin health, General wellbeingRated 5 out of 5 stars2 months agoSpeedy delivery and results
It arrived quicker than expected, was straightforward to use, seal and return. The results were emailed within a few days. I’ll be ordering another kit to check how I’m doing following my Vitamin D spray daily usage.
- Victoria F.Verified BuyerI recommend this productHow old are you? 55-64What is your gender? FemaleWhy do you take Bare Biology supplements? General wellbeingRated 5 out of 5 stars4 months agoKnowing is good
I have never tested my vitamin D levels before and was keen to know where I stood. This kit is easy to use and the results arrived quickly. I think if you’re going to invest in good quality supplements it makes sense to know what your personal needs are and how much to take. I would definitely recommend taking this test if you want to know if you’re supplements are working and how much you need to take.
The importance of testing your vitamin D levels What is vitamin D deficiency? Simply put, a lack of vitamin D impacts our health and well-being. It’s a global health concern...
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