Tablet vs capsule manufacturing: which format is right for your supplement?

So, you’ve spotted a gap in the market, a genuine customer need that isn’t being met. You’ve reviewed the research and now understand which ingredients and dosages will unlock the formula. You’ve even fallen in love with the brand name and secured the digital handles. Then, your contract manufacturer asks whether your product should be a capsule or a tablet. For many brand owners, answering that final question can be the hardest decision of all.

Tablets are solid supplements made by pressing a measured mix of active ingredients and other raw materials into shape. They can be coated, chewable, split into smaller doses or made to release their ingredients at a set speed.
Capsules hold a measured amount of powder, small grains or other material inside an outer shell. The shell is usually made from gelatin or a plant-based material called HPMC. Capsules can work well for targeted blends, plant-based ingredients and formulas that are not suitable for pressing into tablets.

“This choice can shape how your supplement performs, how it’s absorbed, how it looks and even how well it sells.” Julian Cibotaru Product Development Manager, Rain Nutrience

A collection of various white, green, brown, and translucent yellow supplement capsules scattered on a green surface.

This choice can affect how the product works, how the brand presents it, how people use it and how much it costs to make. Neither format is always better. Your goal is to choose the format that best suits the formula and the people who will use it.

This article explains what supplement brands should look at when choosing a tablet manufacturer or capsule manufacturer and how an experienced capsule manufacturing company can help with this choice.

How to choose between tablets and capsules

Decision factor	Capsule	Tablet
Formulation	Often suits powders that flow well, targeted blends and ingredients that do not respond well to pressure	Needs a blend that can be pressed evenly and still have the right strength and breakdown time
Dose	The shell size and powder density limit how much it can hold	Can hold suitable dense blends, but the tablet must still be a practical size
Delivery	Often used for standard fast-release blends, although special release systems are also possible	Can release ingredients at once, later or over time when properly developed and tested
Excipients	May need flow aids, fillers or other added substances, depending on the blend	Usually needs binders, fillers, lubricants or other substances to help it hold together and work properly
Commercial considerations	Shell material, size, filling, testing and packaging all affect the cost	Can offer good value for large orders, depending on tools, coating, batch size and formula

Ingredient compatibility and dose
For tablet manufacturing, the blend must flow smoothly into the tablet press. It must also cope with pressure and still produce tablets with the right weight, strength and breakdown time. Fillers, binders, lubricants and other substances help the tablet work as planned, but they also take up space.

A capsule may suit a simpler powder blend that cannot be pressed into a tablet. However, every capsule has limited space. The amount it can hold depends on the shell size and how dense the powder is. Strong plant extracts or focused vitamin and mineral blends may fit into one or two capsules. Products that need several grams per serving may need too many capsules. This is why products such as protein powders, which often use 20–30g per serving, are usually sold as powders.

Consumer experience
The size and finish of a tablet or capsule can affect how easy it is to take. The number of tablets or capsules in each serving also matters. A review found that swallowing problems affected between 10% and 34.2% of adults in the studies it examined.Harnett et al., 2023 Chewable tablets may help with suitable formulas. Capsules may suit simple, targeted plant-based or specialist blends. The best choice depends on the people who will use the product. Brands should not assume that one format is always easier to take.

Shelf life and stability
Shelf life depends on the full formula, how the product is made and its packaging. Moisture, oxygen, light and heat can affect ingredients in different ways. Gelatin and HPMC capsule shells also handle moisture differently. Brands should consider the shell, formula and packaging together.

Commercial value
Cost depends on the formula, batch size, tools, shell or coating, production steps, testing and packaging. Tablets can offer good value for larger orders. Capsule contract manufacturing may make some powder blends simpler to produce. Brands should compare the full product details rather than assume one format always costs less.

When capsule manufacturing may be the better option

Capsule manufacturing can work well for simple or complex powders that do not respond well to pressure. It is often used for targeted blends, enzymes, plant-based ingredients and other formulas that are suitable for capsules.

Flexible powder formulation
Capsules can hold measured amounts of powder or small grains without pressing them into tablets. This can help when a blend is hard to press or when a brand wants to use fewer added substances. The powder must still flow well, fill each capsule evenly and remain stable.

Conventional immediate release
Many hard-shell capsules are made to break down and release their contents after they are swallowed. This does not mean every capsule works faster than every tablet. How quickly an ingredient dissolves and enters the body still depends on the ingredient and the formula. Capsules can also be designed to release their contents over time, so the shell alone does not decide how the product works.

Capsules do not suit every formula. Products with a high dose may need too many capsules, especially when each serving contains several grams of powder. Brands should check the capsule size, powder density and serving size before choosing this format.

Capsules can also cost more than tablets for some large orders. The shell material, capsule size, filling process, testing and packaging all affect the final price. Brands should compare like-for-like quotes rather than assume capsule production always costs more.

When tablet manufacturing may be the better option

Format flexibility
Tablets can be coated, chewable, scored or made in other special formats. This gives brands ways to improve taste, appearance, ease of swallowing and serving choices. Research shows that age, past experience, tablet size and format can affect what people prefer. Some groups prefer chewable tablets or tablets that dissolve in the mouth.Ranmal, Cram and Tuleu, 2016

Controlled delivery
Tablets can use special materials, coatings and layers to control how ingredients are released. Research shows that this depends on the formula and release method, not only on the fact that the product is a tablet.Adepu and Ramakrishna, 2021 Any claims about slow or controlled release need proper development and testing.

Scale and value
Tablets can offer an efficient route to market for suitable formulas and larger orders. The cost depends on tools, batch size, coating, production steps and packaging. Tablets still need added substances to help them hold together and work as planned. Each one should have a clear purpose.

Can a product range include both tablets and capsules?

Brands do not have to choose only one format for every product. We work with brands that use both across the same range. Capsules can suit targeted blends, plant extracts and active ingredients. Tablets can suit products such as multivitamins or formulas that need a special release method. Using both formats allows each product to use the option that best suits its formula, dose and customer while keeping the range consistent.

How Rain Nutrience can help

Formulation development: Our product development team checks the ingredients, dose, added substances and release needs before suggesting a format. This helps us balance what is possible to make with the brand’s business goals.

Format options: Rain produces tablets, capsules and other supplement formats. We can help brands compare capsule size, tablet size, coatings, serving frequency and packaging before the final product details are agreed.

Quality and compliance: The chosen format must meet the agreed standards every time it is made. We plan checks for raw materials, production, finished products and shelf life as part of development and manufacturing.

Private label and own label: Some brands need a custom formula, while others want a quicker route to market. Our team can advise on the format, product details and manufacturing plan. Working with one experienced partner also keeps formula, capsule contract manufacturing, tablet production, testing and packaging decisions connected.

A woman in a lab coat pouring pills into a container.

If you are comparing formats for a new or existing supplement, contact Rain Nutrience to discuss your formula and business needs with our team.

Frequently asked questions

What is the difference between tablet and capsule manufacturing?
Tablet manufacturing presses a prepared blend into a solid shape. Capsule manufacturing fills a shell with a measured amount of powder, small grains or other suitable material. Each process has different needs for ingredients, dose size, equipment and quality checks.

What should supplement brands consider when choosing between tablets and capsules?
Brands should look at the ingredients, dose size, added substances, shelf life, release method, customer needs, batch size, packaging and cost. You should review all these points together before choosing a format.

Which supplement ingredients are suitable for capsules?
Capsules often suit powders that flow well, strong plant extracts, enzymes and targeted vitamin and mineral blends. The right choice depends on the dose, density, flow, shelf life and shell. Every formula should be checked on its own.

Can Rain Nutrience manufacture both tablets and capsules?
Yes. Rain Nutrience makes both tablets and capsules. We can advise on formulas, format choice, quality checks, testing and packaging. Our team helps brands choose the option that best suits the product instead of forcing a formula into the wrong format.

Have a product format in mind or need help choosing one? Let’s talk. We can help you select the right option for your formula and customers.

Related reading:

Contract manufacturing: A Beginner's Guide to UK Contract Manufacturers

Private label: A Beginner's Guide to Private Label Supplements

Ingredient manufacturing: Nutraceutical Ingredients

Formats: Sachet Packaging and Manufacturing

Written by Julian Cibotaru

Product Development Manager, Rain Nutrience

Julian leads product development at Rain Nutrience. He specialises in electrolyte supplements and nutrition products with a clear purpose. He works closely with brands to create products for sports recovery, hydration and daily wellness.