Bespoke vitamin and mineral supplement manufacturing

A vitamin manufacturer that doses between source and upper levels

Built on authorised claims and the dose rules of every market you sell in, the custom vitamin and mineral supplements we develop and make as a vitamin manufacturer for premium brands go from the first formula to the finished product at our Leicester facility. We make single nutrients such as vitamins D3 and B12, zinc and iron, multivitamins and targeted multinutrients, immune blends, children's ranges and whole-food formulas with greens, sea moss or bee products, as capsules, tablets, gummies, liquids and drops, effervescent tablets, powders, sachets, stick packs and softgels. Every nutrient is dosed between the source level its claim needs and EFSA's upper level. Your brand owns the formula.

Everyday health is one of our supplement categories. We set doses comfortably under the strictest market's limits, so one formula can serve the UK, the EU and the US, and every batch is tested by accredited partner laboratories.

Vitamin brands are moving to targeted multis and active forms

Brands in this category are building five kinds of product.

• Targeted multinutrients. Formulas for a life stage or a need, such as adults over 50, women, men or people using GLP-1 medicines, in place of one generic multi. Our multivitamin manufacturing page covers forms, overages and formats.
• Active forms. Vitamin D3 with vitamin K2 (menaquinone), and B complexes built on methylcobalamin and calcium L-methylfolate, where the form on the label sells as much as the dose.
• Immune blends. Vitamin C, vitamin D, zinc and selenium, sometimes with elderberry, worded strictly within the authorised claims.
• Children's gummies and drops. Vitamin D and multivitamins built to lower upper levels and tighter marketing rules.
• Whole-food formats. Greens, sea moss, bee products and bone broth, where any claim comes from added nutrients. See greens powder manufacturing.

Our omega-3 supplement manufacturing page covers fish, algal and krill oils. B vitamins, iron and magnesium also anchor our energy supplements. Each is a bespoke formula: your forms, your doses and your claims. Your formula is yours.

Permitted forms for every nutrient, from vitamin D3 to selenium

We specify every nutrient by form, grade and dose from Great Britain's list of permitted forms and the EU's, and screen every other ingredient against the GB and EU novel food lists in-house. Our ingredient library lists what we formulate with.

Vitamin D

The NHS advises everyone to consider a daily 10 microgram vitamin D supplement in autumn and winter, and children aged 1 to 4 to take one all year round. Vitamin D3 (cholecalciferol) raised blood vitamin D status more effectively than D2 (ergocalciferol) in a meta-analysis of seven trials, most clearly at large, infrequent doses (Tripkovic and colleagues, 2012). We source D3 from lanolin, or from lichen for vegan products. EFSA's upper level is 100 µg a day for adults and children aged 11 to 17, and 50 µg for children aged 1 to 10 (EFSA, 2023). A 25 µg dose is a fortieth of a milligram, so we use a stabilised dry grade of vitamin D3 and confirm the content of every batch by HPLC.

B vitamins

Vitamin B12 comes as cyanocobalamin, hydroxocobalamin, methylcobalamin or 5'-deoxyadenosylcobalamin, and folate as folic acid, calcium L-methylfolate or a methylfolate glucosamine salt, all permitted forms in GB and the EU. "Vitamin B12 contributes to the reduction of tiredness and fatigue" needs only a source level: 0.375 µg, 15% of the 2.5 µg reference value. Vitamin B6 needs restraint, because EFSA set its adult upper level at 12 mg a day (EFSA, 2023).

Zinc, selenium and other minerals

Zinc and selenium carry wide sets of authorised claims. EFSA's adult upper levels are 25 mg of zinc and 255 µg of selenium a day. We choose forms such as zinc bisglycinate, zinc citrate and L-selenomethionine for absorption, taste and the label, and balance zinc against iron and copper, which compete with it for absorption.

Immune support

Immune formulas rest on the register's wording, such as "Vitamin C contributes to the normal function of the immune system" and "Vitamin D contributes to the normal function of the immune system"; zinc and selenium carry the same wording. "Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise" needs a daily intake of 200 mg and a statement that the effect comes on top of the recommended daily intake. CAP's guidance accepts "supports" and "helps" in UK ads, not "boosts", "strengthens", "stimulates" or "optimises" (CAP, 2020). Elderberry and echinacea carry no authorised claim in GB or the EU, because botanical claims remain on hold.

Kids' and teens' health

Children's products sit under tighter rules. Doses follow EFSA's upper levels by age band, which run well below adult values. Claims on children's development are a separate authorised group: "Vitamin D is needed for normal growth and development of bone in children" applies to products that are at least a source of vitamin D. In the US, iron supplements in solid forms, gummies included, carry FDA's accidental-overdose warning. New York bans sales of supplements marketed for weight loss or muscle building to under-18s, and California adds a similar ban from 1 January 2027, so we keep teen ranges clear of that positioning. Children's gummies get the same active assay on every batch as adult ranges, and drops are checked on the final dropper so each drop carries its stated dose.

Men's health and testosterone

Zinc holds the authorised testosterone claim: "Zinc contributes to the maintenance of normal testosterone levels in the blood". Fertility formulas use "Zinc contributes to normal fertility and reproduction" and "Selenium contributes to normal spermatogenesis", each from a source level. Botanicals sold as testosterone boosters carry no authorised claim in GB or the EU, so we build men's formulas on authorised claims.

Thyroid support

"Iodine contributes to the normal production of thyroid hormones and normal thyroid function" and "Selenium contributes to the normal thyroid function" each need only a source level: 22.5 µg of iodine or 8.25 µg of selenium, 15% of the reference values. The adult upper level for iodine is 600 µg a day (EFSA overview of upper levels, 2025), and kelp varies widely in iodine, so we specify iodine per daily dose and assay it on every batch.

Bee products

Royal jelly, bee pollen and propolis sell as capsules, sprays and sachets. None carries an authorised health claim in GB or the EU, so claims come from added nutrients such as vitamin C. Propolis varies with the plants bees forage, so we specify each extract by its marker compounds and test every batch for identity, heavy metals and pesticide residues.

Sea moss

Sea moss, sold as Irish moss (Chondrus crispus) and related red seaweeds, comes as gels, capsules and gummies. Species decides status: in the EU, Chondrus crispus is not novel in food, and Gracilaria gracilis, Eucheuma denticulatum and Eucheuma horridum are not novel in food supplements (European Commission, 2024). Seaweeds can carry high levels of iodine and heavy metals, so we specify species and harvest area, and test iodine, inorganic arsenic, cadmium, lead and mercury on every batch.

Spirulina, chlorella and moringa

Spirulina (Arthrospira platensis) and Chlorella vulgaris anchor many greens blends and are listed as not novel in food in the EU (European Commission, 2024). The EU novel food catalogue lists moringa leaves, pods and seeds as not novel in food, and moringa seed oil as not novel in food supplements; we specify the leaf and screen any extract separately. Algae grown in open ponds can pick up toxins from other species, so spirulina batches get a microcystin test alongside metals and microbiology.

Bone broth

Bone broth powders build on protein and collagen. Claims come from protein, such as "Protein contributes to the maintenance of muscle mass" for products at least a source of protein, never from collagen, which holds no authorised claim.

Why most vitamins suit every format we make

Most vitamins and minerals work at milligram or microgram doses, so they suit every format we make.

• Capsules and tablets carry multi-nutrient formulas compactly. Capsules are GMP certified, and we make tablets in the same Leicester facility; see capsule and tablet manufacturing.
• Gummies suit vitamin D, B12, folic acid and children's ranges, and are GMP certified, with an active assay on every batch as standard. Calcium and magnesium need more room than a gummy offers; see gummy manufacturing.
• Liquids, drops and sprays deliver vitamin D and B12 in measured microgram doses, and our liquids are GMP certified.
• Effervescent tablets dissolve vitamin C and B vitamins into a drink, made in Leicester.
• Powders, sachets and stick packs carry greens, bone broth and gram doses of minerals.
• Softgels hold oil-based vitamins A, D, E and K, made in Leicester.

We are ISO 9001, HACCP and GMP certified by BSI, and FDA registered. BRCGS implementation under way, certification expected in early 2027.

How we make and release them

Development runs as a paid R&D stage, which can be included with an order of the right size: bench samples first, then stability studies in your final pack, which set each overage and the best before date. In production, microgram nutrients such as vitamin D, vitamin B12, folic acid and selenium are diluted step by step into a carrier before the main blend, so every unit carries its dose. Tablets are checked in process for weight, hardness and disintegration, capsules for fill weight and gummies for deposit weight. We choose the pack for the most fragile nutrient: bottles with desiccant, blisters or foil sachets against moisture, and opaque packs against light.

Labels are verified on every batch as our critical control point. Every batch is tested by accredited partner laboratories as part of every order, and quality control releases it against its specification. You receive a certificate of analysis for every batch, and from development the specification, the stability data and the claims review for each market.

Register wording for energy, immune and children's claims

Claims follow the register, not the research. The table sets out the position as of October 2026, from the GB nutrition and health claims register, the EU register and US law. In GB and the EU, a vitamin or mineral health claim needs the nutrient at least at a source level, 15% of its reference value per daily dose, unless the claim sets its own condition.

Where maximum doses are set, and where they aren't

As of October 2026, these are the points that change what vitamin and mineral brands can make and sell. We review each line every quarter, and our regulation watch tracks the detail.

• EU maximum levels. EU maximum levels for vitamins and minerals in food supplements are under review, so we design EU formulas with a ready alternative.
• National limits in the EU. National maximum amounts apply where member states have set them, so a dose legal in one country can be refused in another. We dose for the strictest country on your market plan.
• Great Britain. GB sets no statutory maximum levels, and every vitamin and mineral must be in a form on its permitted list.
• United States. Federal law stops FDA from setting maximum potency limits for vitamins and minerals, except for products such as those for children, so we set US doses against EFSA's upper levels too.

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References: Commission Regulation (EU) No 432/2012 (2012); Commission Regulation (EC) No 983/2009 (2009); Directive 2002/46/EC on food supplements (2002); EFSA, overview of tolerable upper intake levels (2025); Endocrine Society, clinical practice guideline on vitamin D (2024); Tripkovic and colleagues, American Journal of Clinical Nutrition (2012); Commission Recommendation (EU) 2018/464 (2018); CAP, guidance on food supplements and the immune system (2020).