BioStacks
Best for
Ingredients (12)
Vitamin D
100%Dose
1400 IU
Target
1000–5000 IU
Form
Premium
Soy Isoflavones
100%Dose
100 mg
Target
40–90 mg
Form
—
Calcium
100%Dose
800 mg
Target
200–600 mg
Form
Not listed
Magnesium
100%Dose
300 mg
Target
100–400 mg
Form
Not listed
DHA (Docosahexaenoic Acid)
62%Dose
155 mg
Target
250–1000 mg
Form
—
Other Ingredients (9)
Sodium BorateBuffer
Classified as a Substance of Very High Concern (SVHC) under EU REACH for reproductive toxicity (Category 1B — may damage fertility and the unborn child). EFSA's tolerable upper intake from total boron exposure is 10 mg/day for adults; sodium borate dosing must stay well below this. Acute oral toxicity is moderate (lethal dose ~5–20 g in adults), but the chronic-exposure reproductive endpoint is the binding constraint. Largely phased out of modern supplements and personal care in favor of safer buffers (citrate, phosphate). If a current product lists sodium borate, the inclusion warrants scrutiny — there are safer alternatives for every excipient function it provides.
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Coating (unspecified)Coating
Generic tablet coating declaration where the label does not itemize the coating's components; modern aqueous film coatings are typically cellulose-based (HPMC) with a plasticizer
BeeswaxCoating
Natural wax produced by honeybees, used as a coating and binding agent in softgels and tablets
Capsule ShellCapsule
Generic capsule shell where the label does not specify the material. Common materials are hypromellose (HPMC) for vegetarian capsules and gelatin for traditional capsules — both are GRAS-listed and safe. Fish gelatin and pullulan variants also exist.
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
StarchBinder
Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
How to Take It
Take it anytime
No evidence a formula this broad works better at any particular hour. Take it with a meal containing fat — the vitamin D in it absorbs poorly without one.
With a meal containing fat
Keep it away from high-oxalate foods like spinach
Space it a couple of hours from Iron
On the label
TWO OSTEOCARE TABLETS PER DAY, PLUS ONE OMEGA-3 CAPSULE PER DAY. Swallow each with water or a cold drink and take with a main meal. Not to be chewed. Do not exceed recommended intake. Take on a full stomach. No preservatives or artificial colours Gluten free No lactose or yeast Osteocare is not tested on animals
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
£15.05≈ $19.11
Near the median of 632 vitamin D supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.