
about Capsuline and our products
Shipping and Orders
Yes. Our customization service allows you:
- Print your logo, brand name, or batch ID directly on the capsules.
- Choose custom colors, finishes, or capsule types.
Minimum order quantities:
1.5 million capsules for gelatin and 2 million for vegetable capsules. Learn more
Yes, we ship worldwide to over 50 countries using FedEx and UPS. More info
Capsule Information
Yes, all capsules are gluten-free, non-GMO, and made in allergen-controlled facilities.
Capsuline offers capsules with both FDA-approved artificial colorants and natural colorants. Flavored options are also available. Explore flavored capsules here, and discover our capsules made with natural colorants, know more here.
The main difference between acid-resistant and delayed-release capsules is their use and composition. Acid-resistant capsules are used in pharmaceuticals and may contain phthalates, which are banned in U.S. dietary supplements. In contrast, delayed-release capsules, suitable for
nutraceuticals, provide targeted delivery without restricted ingredients, making them ideal for supplements. You can find options here
Capsules tipically dissolve at body temperature: 36°C to 38°C (97°F to 100°F).
- Gelatin: begins softening at ~30°C.
- HPMC: more stable in heat and humidity.
- Size 4 or 3: small pets (cats/small dogs)
- Size 2 or 1: medium breeds
- Size 0 or 00: large breeds
If you want to know more about PetCapsules, learn more here.
- Size 000: 822–1,644 mg
- Size 00: 570–1,140 mg
- Size 0: 408–816 mg
- Size 1: 288–576 mg
Learn more on our Size Chart
Our smallest capsule is Size 5ideal for micro-dosing. It holds approximately 60 to 130 mg, depending on the density of the fill material. With a maximum capacity of up to 156 mg. Available here: Empty Capsules Size 5
Our largest capsules is Size 000, with a capacity of up to 1,644mg, depending of the density of the contents.
Explore empty capsules Size 000 here
Capsule capacity is typically measured in milligrams (mg), but can also be expressed in milliliters (ml) depending on the density of the formula.
Learn more here: A Guide to Choosing the Right Capsule Size for Your Needs
Empty capsules are colored during their manufacturing by adding dyes or pigments (food-grade dyes or natural colorants) to the gelatin or vegetarian polymer solution before the capsules are formed.
Learn more here: All you need to know about natural colorants
Yes, we have them available in both bulks and bags quantities:
- Bags: 1K, 5K, 10K, 50K
- Bulk: 75K y 100K
Standard capsules are not suitable for pure liquid formulations, as they are optimally designed for powders or semi-solid ingredients. However, HPMC (hydroxypropyl methylcellulose) vegetarian capsules are compatible with certain liquid substances, such as essential oils. It is important to note that aqueous-based liquids (e.g., water) are not recommended, as they may compromise the capsule’s structural integrity
We recommend compatibility testing before use to ensure product stability and performance.
Contact for liquid solutions here