Kosher Certification for Gummies, Capsules, Softgels, and Other Supplement Formats: Why the Dosage Form Matters as Much as the Ingredients

The five factors that decide the kosher status of a supplement are:

1. The gelling agent or shell material: gelatin, pectin, HPMC, or pullulan
2. The excipients and processing aids: glycerin, stearates, coatings, carriers, and flavors
3. Whether the process is hot and wet or cold and dry
4. What else runs on the same production line
5. Whether any ingredient or shared equipment is dairy

The same dose of vitamin D3 can reach a consumer as a pectin gummy, a two-piece capsule, a softgel, a coated tablet, or a scoop of flavored powder. Each is a different manufacturing process with different excipients, different equipment, and a different kosher review. A formula that is simple to certify as a capsule can be a substantial project as a softgel.

The kosher review follows the format.

Capsule filling is a dry, ambient step, so the review centers on the shell and the ingredients. Softgel production cooks a gelatin mass in heated tanks, so the review extends to the equipment and the plant’s schedule.

This article works through the major supplement formats at the level of the production floor. For the general picture of ingredient sourcing and documentation, see EarthKosher’s overview, Are Supplements Kosher? What Brands Need to Know. What follows is the technical layer underneath it.

01Why does dosage format matter for kosher certification?

Dosage format matters for kosher certification because each format brings its own excipients and its own equipment, and kosher law evaluates both. A certified active ingredient is one input. The shell, gelling agent, plasticizer, lubricant, coating, carrier, and flavor system around it are others, and in a finished supplement they can outnumber the actives several times over.

The issues this article covers are:

• Gummies, where a hot-cooked gel system and shared depositing lines control the outcome
• Capsule shells, where the shell material and its certificate are the question
• Softgels, where gelatin, glycerin, and heated gel-melt equipment all require review
• Tablets, where binders, lubricants, and coatings carry the issues
• Protein powders and sports nutrition products, where dairy status matters most
• Probiotics and specialty actives, where growth media and animal-derived materials appear
• Contract manufacturing, where another brand’s product can set the status of the line

02Which supplement format raises which kosher issues?

Each supplement format has a different control point, and identifying it tells a brand which documents to request first.

03Why is a cold, dry process treated differently from a hot, wet one?

A cold, dry process is treated differently from a hot, wet one because absorption into equipment is driven by heat. Kosher law holds that a vessel absorbs taste from what is processed in it and can pass that taste to the next product. Without heat, the question on shared equipment is physical residue: whether the previous product has been cleaned out completely.

Kashering

The process of purging absorbed taste from equipment, typically with boiling water or steam, often after the equipment has sat idle for 24 hours.

With heat and liquid, equipment used for a non-kosher product generally has to be kashered before a certified run. That idle period is a scheduling cost, which is why line time in a shared plant becomes part of the certification conversation.

Two layers are at work here, and they should be kept apart. The halachic principle, that heat drives absorption into equipment, is Jewish law. How that principle is applied to a fluid-bed dryer or a coating pan at a given temperature is certification policy, and certifying agencies can reach different conclusions. The table describes the general pattern, not a ruling on any plant.

Bottom lineA shared capsule filler or blender is generally a cleaning question. A shared gummy cooker or softgel melt tank is generally a kashering question.

04Gummies: how do gelatin and pectin change the kosher review?

Gelatin and pectin change the kosher review of a gummy because gelatin is an animal product and pectin is a fruit extract. A gelatin gummy has a source problem. A pectin gummy has an equipment problem.

Why can’t a small amount of gelatin be disregarded?

A small amount of gelatin cannot be disregarded because gelatin is what sets the gummy, and kosher law does not nullify a setting agent.

Bitul

Nullification — the rule that allows a non-kosher ingredient accidentally mixed in at less than one part in sixty to be disregarded. Two limits apply. A prohibited ingredient may not be added deliberately in order to nullify it. And a davar hama’amid is not nullified at any level.

Davar hama’amid

An ingredient that gives a product its structure, such as the gelatin that sets a gummy.

Conventional gelatin is made from pigskin or from the hides and bones of cattle not slaughtered according to kosher law. Gelatin from the hides of kosher-slaughtered cattle and gelatin from kosher fish species are both produced commercially, at narrower supply and higher cost. Fish gelatin has lower gel strength, which can require reformulation.

One point catches buyers after the purchase order is placed. Kosher certificates on gelatin do not all rest on the same basis, and acceptance varies between certifying agencies.

The question to settle before sourcing is not whether a gelatin “is kosher certified” but whether your agency accepts that specific certificate.

What does a pectin gummy still need?

A pectin gummy still needs every other ingredient reviewed and a kosher production line. Pectin, extracted from citrus peel or apple pomace, certifies without difficulty. Three other items deserve attention:

• Grape-derived ingredients. Grape juice concentrate used as a sweetener and grape skin extract used as a color fall under stam yeinam, the rules governing grape products handled without kosher supervision.
• Vitamin beadlets. Fat-soluble vitamins such as A and D3 can be supplied as beadlets in a gelatin matrix, which puts gelatin into a gummy marketed as gelatin-free.
• Finishing agents. Gummies are oiled or polished with vegetable oils, MCT oil, carnauba wax, or beeswax, and each needs a certificate.

The equipment question follows from the process. Gummy slurry is cooked in a kettle or continuous cooker, held hot, and deposited hot. A plant that runs gelatin and pectin gummies through the same cooker, hoppers, and depositor has hot contact with non-kosher gelatin on every product-contact surface, and those surfaces need kashering before a certified run.

Starch mogul lines add a complication. The hot gummy mass is deposited into impressions stamped in trays of molding starch, and that starch is sieved, dried, and recirculated from one product to the next. Starch that has received hot gelatin gummies does not simply carry over to a certified run, and a plant may need dedicated starch for kosher production. Starchless lines with silicone or metal molds avoid this but add a mold release agent to review.

Bottom lineA gelatin gummy is kosher only with an accepted kosher gelatin. A pectin gummy is kosher only when its other ingredients are certified and its cooking and depositing line is kosher or has been kashered.

05Capsules: what determines whether a capsule shell is kosher?

The shell material and the capsule manufacturer’s certificate determine whether a capsule shell is kosher. Two-piece capsules are made from gelatin, from hydroxypropyl methylcellulose (HPMC), which is derived from plant cellulose, or from pullulan, which is produced by fermentation. Gelatin capsules carry the gelatin questions described above.

For a brand or a contract encapsulator, the capsule is a purchased component and the control point is at receiving: a current certificate naming the specific capsule, matched against the carton that arrives. “Vegetarian capsule” on a specification sheet is a description, not a certificate. Capsule plants can run gelatin and HPMC on similar pin-dipping lines, and whether a given HPMC capsule is acceptable is what its certificate resolves. A brand does not need to investigate that independently.

Smaller items attach to the shell. Printing inks can be based on shellac, an insect-secreted resin that agencies treat differently. Liquid-filled capsules may be sealed with a gelatin band even where the shell is not gelatin. Filling itself is dry and ambient, so a shared encapsulator is a cleanout matter, though dosing discs and tamping pins hold powder where a visual check does not reach.

Bottom lineA capsule shell is kosher because its manufacturer’s certificate says so, not because the specification sheet calls it vegetarian.

06Softgels: why are gelatin and glycerin both part of the review?

Gelatin and glycerin are both part of a softgel’s kosher review because together they make up most of the shell, and both can be animal-derived. A softgel shell is a gelatin film plasticized with glycerin, sorbitol, or both. Glycerin is a major component of the shell by weight, not a trace additive.

Glycerin is produced by splitting fats and oils, as a coproduct of biodiesel, or synthetically. The fat can be vegetable or animal, and plants that split fats can process both on the same equipment. A specification sheet states purity and grade, not origin. For a softgel shell, a kosher certificate on the glycerin is a requirement.

The process is what makes softgels the most demanding format. Gel mass is cooked in a heated melt tank, held hot in jacketed receivers, cast into ribbons, and fed through rotary dies where the fill is injected and the capsule sealed.

A plant that runs conventional gelatin has it in hot contact with melt tanks, receivers, and transfer lines. Running a kosher shell, whether kosher gelatin or a plant-based shell of carrageenan and modified starch, requires kashering that equipment, generally with a mashgiach, the kosher supervisor assigned to the facility, present.

Supporting materials complete the list. Ribbons are lubricated with MCT oil or mineral oil. Suspension fills can include beeswax, lecithin, and carrier oils. Fish oil has to come from kosher species, meaning fish with fins and scales, and from a certified refinery. Krill oil and shark liver oil are not certifiable. Algal oil, a fermentation product, is the non-fish source of DHA.

Bottom lineA kosher softgel requires a kosher shell, certified glycerin, a certified fill, and gel-melt equipment that is dedicated or kashered. All four conditions apply.

07Tablets: which coatings and processing aids need review?

The binders, lubricants, and coatings in a tablet need review, because a tablet is largely excipient by design. Four groups matter:

• Fillers and binders. Microcrystalline cellulose and dicalcium phosphate raise little concern. Lactose makes the tablet dairy. Gelatin is sometimes used as a granulation binder.
• Lubricants. Magnesium stearate and stearic acid are produced from palm oil or from tallow, in oleochemical plants that can handle both.
• Film coatings. Coating systems combine a film former with plasticizers such as glycerin, triacetin, polysorbate 80, and acetylated monoglycerides, several of which are fat-derived.
• Glazes and polishes. Pharmaceutical glaze is shellac in alcohol. Carnauba wax and beeswax are used for polishing.

Lubricants are where nullification comes up again, since magnesium stearate is used at around one percent of a tablet or less. A lubricant is not a setting agent, but it is deliberately added, and a certified product cannot be formulated on the basis that a non-kosher input is too small to matter. Which ingredients require kosher review covers this in more detail. Chewable tablets are flavored and eaten, and are reviewed as food.

Bottom lineA low use level does not remove the need to verify the kosher source of a tablet lubricant, binder, or coating.

08Powders: what does kosher certification involve for protein powders and sports nutrition products?

Kosher certification for protein powders and sports nutrition products centers on dairy status, on how amino acids were produced, and on the flavor system. Sports nutrition is the part of the supplement industry closest to conventional food manufacturing, and its questions resemble those of a dairy ingredient plant.

Whey protein concentrate and isolate, casein, caseinates, and milk protein isolate are dairy. Whey is a coproduct of cheesemaking, and its status is set in the cheese plant by the vat ingredients, the temperatures curd and whey reach together, and what streams are returned to the whey system. The whey supplier’s certificate resolves that, and a brand does not need to adjudicate it.

Two consequences do reach the brand. The finished product carries a dairy designation. And certified whey is ordinarily not chalav Yisroel, milk supervised from the time of milking, which a segment of the kosher market requires.

Amino acids need a source statement. Leucine, isoleucine, valine, and glutamine are made by fermentation, and the medium is reviewed. Some amino acids, cysteine and tyrosine among them, have historically been extracted from feathers or hair, and extraction-route material can still be on the market. Creatine monohydrate is synthetic and ordinarily simple to certify.

Flavor systems are the remaining variable. Chocolate and vanilla flavors can contain dairy components, and creamer bases and MCT powders can be spray-dried on sodium caseinate, a milk protein. Either makes a plant-protein powder dairy. Collagen peptides raise the same acceptance question as gelatin, covered in EarthKosher’s article on kosher certification for superfoods.

Pareve

A product that is neither meat nor dairy.

DE (dairy equipment)

A designation meaning the product has no dairy ingredients but was made on dairy equipment. A DE product is not pareve.

Dry blending is cold, so a pareve product blended after whey is a cleanout question rather than a kashering one. What cleanout is sufficient is certification policy, set by the certifying agency. Where cleanout cannot be verified, the product may be designated dairy or DE.

Bottom lineA protein powder containing whey or casein is kosher-dairy. A plant-based or amino acid powder is pareve only when its flavors and carriers are dairy-free and its blending equipment is verified clean of dairy.

09Probiotics and specialty formulations: where do the kosher questions come from?

The kosher questions in probiotics come from what the organisms were grown on and what protected them during drying. Strains are fermented in a nutrient medium, concentrated, mixed with a cryoprotectant, and freeze-dried. Growth media can contain skim milk, lactose, casein digests, or peptones made from animal tissue, and cryoprotectants include skim milk powder. A strain grown or protected with dairy inputs may be dairy or DE even when the finished capsule lists no milk ingredient.

Freeze dryers are assessed on their cycle. Primary drying is cold, but secondary drying raises shelf temperatures, and shared equipment may require kashering depending on how high. EarthKosher covers the strain-level review in Can Probiotics Become Kosher Certified?

Several specialty actives are animal-derived by nature and should be identified early:

• Digestive enzymes. Pancreatin, pepsin, and ox bile come from animal organs. Microbial and plant enzymes are the certifiable alternatives; see Are enzymes kosher?
• Joint ingredients. Glucosamine is made from shellfish shell or by fermentation. Chondroitin is extracted from bovine, porcine, or shark cartilage.
• Vitamin D3. D3 is produced from lanolin, the grease washed from sheep’s wool, or from lichen, and source and processing are both reviewed.
• Liquid extracts. Tinctures rest on ethanol and glycerin. Ethanol can be distilled from grape material, which brings the grape rules back in.

Bottom lineA probiotic’s kosher and dairy status is set by its growth medium and cryoprotectant, not by the finished label.

10Contract supplement manufacturers: how does shared equipment affect a brand’s certification?

Shared equipment at a contract supplement manufacturer affects a brand’s certification because a line’s status is set by everything that runs on it, including other brands’ products. If the softgel line ran porcine gelatin last week, that history is part of the review.

A contract manufacturer’s kosher certificate does not extend automatically to every product made in the building. Certification attaches to specific products made from specific approved ingredients, and a brand’s formula has to be reviewed and added, usually under a private-label arrangement. A manufacturer already operating a kosher program shortens the process, because its raw material list, supplier certificates, and kashering procedures are established.

Ingredient substitution is the risk that persists after certification. Contract manufacturers qualify several sources for commodity excipients and buy among them on price and lead time. Magnesium stearate from an approved supplier and from an unreviewed one are identical on a certificate of analysis. A kosher program holds when every lot is matched to a current certificate at receiving and a supplier change is submitted before the material is used.

Bottom lineA brand using a contract manufacturer is certified on the manufacturer’s line, schedule, and purchasing controls, and all three belong in the review. Our guide to certification at a co-packer covers the same ground for food brands.

11What should a brand ask its manufacturer before seeking kosher certification?

A brand should ask its manufacturer about its existing kosher program, the full use of the production line, and how raw material sources are controlled. The answers show whether certification is a documentation exercise or a production change.

1. Is the facility kosher certified, by which agency, and for which formats and lines?
2. What else runs on my line, including gelatin-based, dairy, fish oil, and animal-derived products?
3. For gummies: is the line gelatin-free, and is molding starch shared with gelatin products?
4. For softgels: what shell systems does the plant run, and can the gel-melt equipment be kashered and scheduled?
5. For capsules: can you provide the certificate for the exact capsule type?
6. What is the source of the glycerin, stearates, and coating plasticizers, and is each certified?
7. Do vitamin premixes or beadlets contain gelatin, lactose, or caseinate?
8. How many suppliers are qualified for each excipient, and how are substitutions approved?
9. Is any step, such as premixing, coating, or packaging, performed at another site?

12What does certification look like for a supplement brand?

Certification for a supplement brand consists of an ingredient review, a facility review, and a supervision plan matched to the dosage format.

• Ingredient review. Each SKU needs a complete raw material submission: actives, excipients, processing aids, capsule shells, and flavors, with supplier names and manufacturing sites. For multi-SKU lines this is the longest step. Grouping formulas that share shells, excipients, and lines reduces repeated work.
• Facility review. The inspection concentrates on what else runs on the line, on changeover procedures, and on receiving controls. See how to prepare a facility for kosher certification.
• Supervision. A capsule or powder made on dry equipment with certified ingredients is generally maintained through periodic inspection. Softgel and gummy production in a shared plant may call for a mashgiach on site for kashering and certified runs.
• Timeline. Supplement certification timelines are driven by supplier response on excipient documentation and by the contract manufacturer’s schedule.

13About EarthKosher’s experience with supplement companies

EarthKosher certifies more than 600 companies in over 40 countries, with a concentration in natural products and supplements. Its certified companies sit at several points in the supplement chain, from capsule supply to finished brands:

• Qingdao Yiqing Biotechnology manufactures EarthKosher-certified hypromellose (HPMC) and pullulan empty capsules in Qingdao, China, for supplement and pharmaceutical companies.
• LFA Machines supplies EarthKosher-certified empty Vcap HPMC capsules, alongside capsule fillers and tablet presses for supplement manufacturers.
• M2 Ingredients grows and processes organic mushroom powders for supplements, foods, and beverages, including encapsulated products.
• Mannatech holds EarthKosher certification on wellness products distributed in the United States, Canada, and South Africa.
• WeNatal makes EarthKosher-certified prenatal supplements.

15Getting started

If you are developing or reformulating a gummy, capsule, softgel, tablet, or sports nutrition powder, settle the format questions before the contract manufacturer is locked in. Assemble the full formula with excipients, the shell specification, and your manufacturer’s answers to the questions above, and have them reviewed together. EarthKosher can tell you which parts are ready for certification, which need a supplier certificate, and which would require a change of ingredient or line.

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