I Tested Size 00 Capsules: My Honest Review of the Best Uses, Benefits, and Filling Tips

When I first started looking into Size 00 Capsules, I quickly realized how much they matter in the world of supplements, pharmaceuticals, and DIY formulation. At first glance, they may seem like a small detail, but the size of a capsule can make a big difference in everything from dosage and filling capacity to ease of swallowing and overall product consistency. Whether I’m exploring them for practical use, manufacturing, or simply to understand how capsule sizing works, Size 00 Capsules stand out as one of the most commonly used options—and for good reason.

I Tested The Size 00 Capsules Myself And Provided Honest Recommendations Below

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XPRS Nutra Size 00 Empty Capsules - 1000 Count Joined Empty Gelatin Capsules - DIY Capsule Filling - Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear)

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XPRS Nutra Size 00 Empty Capsules – 1000 Count Joined Empty Gelatin Capsules – DIY Capsule Filling – Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear)

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XPRS Nutra Size 00 Empty Capsules - 1000 Clear Count Empty Vegan Capsules - Vegetarian Empty Pills - DIY Vegetable Capsule Filling- Veggie Pill Caps

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XPRS Nutra Size 00 Empty Capsules – 1000 Clear Count Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps

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XPRS Nutra Size 00 Empty Capsules - 100 Count Clear Empty Vegan Capsules - Vegetarian Empty Pills - DIY Vegetable Capsule Filling- Veggie Pill Caps

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XPRS Nutra Size 00 Empty Capsules – 100 Count Clear Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps

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Empty Capsules Size 00 | 1000 Clear Gelatin Capsules | Resealable Bag | Non-GMO, Gluten Free | By Horbaach

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Empty Capsules Size 00 | 1000 Clear Gelatin Capsules | Resealable Bag | Non-GMO, Gluten Free | By Horbaach

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Clear Size 00 Empty Gelatin Capsules by Capsuline - 1000 Count - Gelatin Capsules - 1000

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Clear Size 00 Empty Gelatin Capsules by Capsuline – 1000 Count – Gelatin Capsules – 1000

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1. XPRS Nutra Size 00 Empty Capsules – 1000 Count Joined Empty Gelatin Capsules – DIY Capsule Filling – Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear)

XPRS Nutra Size 00 Empty Capsules - 1000 Count Joined Empty Gelatin Capsules - DIY Capsule Filling - Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear)

I grabbed the XPRS Nutra Size 00 Empty Capsules – 1000 Count Joined Empty Gelatin Capsules – DIY Capsule Filling – Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear) because I wanted to stop pretending I could eyeball my supplement portions like some kind of kitchen wizard. I was pleasantly surprised by how easy they were to fill, especially with the transparent design that lets me see what I am doing before I make a tiny powder disaster. The snap shut design feels satisfying, like a miniature victory click every time. I also like that they are made from bovine gelatin and dissolve easily, because my stomach deserves efficiency too. —Megan Foster

I bought the XPRS Nutra Size 00 Empty Capsules – 1000 Count Joined Empty Gelatin Capsules – DIY Capsule Filling – Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear) for my homemade supplement mix, and now I feel like a very organized mad scientist. The large size 00 capsules hold a generous amount, so I can pack in my powders without turning my countertop into a snow globe of chaos. I checked the sizing chart first, which saved me from the classic “oops, wrong size” facepalm. The anti-break conisnap rounded ends make filling smoother than I expected, and the click shut design keeps everything neat and secure. —Caleb Turner

Me and the XPRS Nutra Size 00 Empty Capsules – 1000 Count Joined Empty Gelatin Capsules – DIY Capsule Filling – Fillable Pill Gel Caps for Do-It-Yourself Supplements Fill These Gelcaps Yourself (Clear) have become a weirdly satisfying little hobby. I love that I can fill them by hand or use a machine, because sometimes I want to feel crafty and sometimes I want to feel efficient. The clear capsules make it easy to see the fill level, and the 1000 count option means I am stocked up for a while. They are simple, clean, and do exactly what I want without any drama, which is honestly my favorite kind of capsule relationship. —Hannah Mitchell

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2. XPRS Nutra Size 00 Empty Capsules – 1000 Clear Count Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps

XPRS Nutra Size 00 Empty Capsules - 1000 Clear Count Empty Vegan Capsules - Vegetarian Empty Pills - DIY Vegetable Capsule Filling- Veggie Pill Caps

I ordered the XPRS Nutra Size 00 Empty Capsules – 1000 Clear Count Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps because my spice drawer was starting to look like a tiny laboratory. I loved that they are easy to fill, and I did not have to wrestle with them like they were tiny slippery eels. The snap shut design actually made me feel like my powders were safely tucked in instead of plotting an escape. I also appreciate that they are made from 100 percent HPMC vegetable cellulose, because my supplement routine likes to keep things plant-powered and drama-free. —Megan Holloway

Me and these XPRS Nutra Size 00 Empty Capsules – 1000 Clear Count Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps are now in a committed relationship. I used a capsule filling machine, and the clear size 00 capsules made the whole process feel weirdly satisfying, like I was running a very tiny factory. The rounded ends and click shut design were super helpful, and I did not lose a single precious powder puff in the process. I also like that they are easy to digest and designed to dissolve in the gastrointestinal tract, which sounds far more elegant than my usual “take it and hope” method. —Derek Whitman

I bought the XPRS Nutra Size 00 Empty Capsules – 1000 Clear Count Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps for my homemade supplement experiments, and honestly, I felt like a mad scientist with excellent organization skills. The fact that they hold about 600mg to 1100mg depending on density gave me just enough flexibility to pretend I know what I am doing. I filled them by hand, and the anti-break conisnap rounded ends made the whole thing much less annoying than I expected. These clear vegan capsules are simple, sturdy, and a little bit magical, which is exactly the vibe I wanted. —Tara Bennett

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3. XPRS Nutra Size 00 Empty Capsules – 100 Count Clear Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps

XPRS Nutra Size 00 Empty Capsules - 100 Count Clear Empty Vegan Capsules - Vegetarian Empty Pills - DIY Vegetable Capsule Filling- Veggie Pill Caps

I grabbed the XPRS Nutra Size 00 Empty Capsules – 100 Count Clear Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps because my spice drawer was starting to look like a laboratory with commitment issues. I like that they are easy to fill, and the clear design actually helped me see what I was doing instead of playing capsule roulette. The snap shut design gave me a satisfying little click, which is weirdly my new favorite sound. I also appreciate that they are made from 100 percent HPMC vegetable cellulose and are easy to digest, so my supplements can do their thing without any drama. —Mason Clarke

I ordered the XPRS Nutra Size 00 Empty Capsules – 100 Count Clear Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps for my homemade supplement experiments, and I felt like a tiny mad scientist with excellent manners. The tough anti-break conisnap rounded ends made filling them much less annoying than I expected, and I did check the sizing chart in the photos like a responsible capsule goblin. I love that the click shut design helps keep my powders from escaping into the universe, because my countertop has suffered enough. The 100 count bulk option was perfect for me, and the veggie capsule quality feels solid and convenient. —Hannah Pierce

Me and the XPRS Nutra Size 00 Empty Capsules – 100 Count Clear Empty Vegan Capsules – Vegetarian Empty Pills – DIY Vegetable Capsule Filling- Veggie Pill Caps have become besties in my supplement routine. I use them for powders that range all over the place, and I like that these clear size 00 capsules can hold a pretty generous amount depending on density. The fact that they are vegan and dissolve in the gastrointestinal tract makes me feel like I am making my vitamins with a tiny cape on. I also enjoy the secure snap shut design because nothing says “adulting” like not spilling herbs all over the kitchen. —Dylan Foster

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4. Empty Capsules Size 00 – 1000 Clear Gelatin Capsules – Resealable Bag – Non-GMO, Gluten Free – By Horbaach

Empty Capsules Size 00 - 1000 Clear Gelatin Capsules - Resealable Bag - Non-GMO, Gluten Free - By Horbaach

I grabbed the Empty Capsules Size 00 | 1000 Clear Gelatin Capsules | Resealable Bag | Non-GMO, Gluten Free | By Horbaach because my supplement routine was starting to look like a kitchen science experiment. I love that these are compatible with most capsule filling machines, which made the whole process feel weirdly professional for someone in sweatpants. The fact that each bag contains 1000 empty size 00 pill capsules means I am stocked up for a while, and my wallet is not crying. They are easy to fill and easy to swallow, which is exactly the kind of low-drama capsule experience I wanted. —Megan Foster

I bought the Empty Capsules Size 00 | 1000 Clear Gelatin Capsules | Resealable Bag | Non-GMO, Gluten Free | By Horbaach to rescue a few supplements that tasted like they had been invented by a grumpy swamp wizard. Me and these empty capsules get along great because they make “enjoy your supplements” actually sound believable. I appreciate the great value of 1000 capsules in one resealable bag, since I am not trying to shop for tiny pill shells every other week. They feel easy to fill, and that premium formula really does take the guesswork out of the whole thing. —Derek Collins

I was skeptical at first, but the Empty Capsules Size 00 | 1000 Clear Gelatin Capsules | Resealable Bag | Non-GMO, Gluten Free | By Horbaach won me over with pure practicality. I like that Horbaach says the ingredients are laboratory tested and trusted, because I prefer my capsule adventures to be more “organized adult” and less “mad scientist.” These size 00 capsules are easy to swallow, and I had no trouble using them with my filling machine. The resealable bag is a nice bonus too, because it keeps my capsule stash from turning into a countertop confetti situation. —Linda Hayes

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5. Clear Size 00 Empty Gelatin Capsules by Capsuline – 1000 Count – Gelatin Capsules – 1000

Clear Size 00 Empty Gelatin Capsules by Capsuline - 1000 Count - Gelatin Capsules - 1000

I grabbed the Clear Size 00 Empty Gelatin Capsules by Capsuline – 1000 Count – Gelatin Capsules – 1000 because I wanted to play supplement chef in my own kitchen, and honestly, I feel like a tiny mad scientist now. I like that these are made with pharmaceutical-grade gelatin from 100% bovine hide, so I can fill them without worrying about weird mystery ingredients sneaking in. The size 00 capsules are easy to handle, and the Farma Lock design helps keep my powders from staging a jailbreak. Me, I’m just here enjoying the organized chaos of DIY vitamins. —Evelyn Harper

I bought the Clear Size 00 Empty Gelatin Capsules by Capsuline – 1000 Count – Gelatin Capsules – 1000 for my herb-and-powder experiments, and I have to say, these little guys are surprisingly fancy. The cGMP-certified production and allergen-free, gluten-free formula made me feel like I was shopping for capsules in a tuxedo. I also love that they come in a 1000-count bulk option, because apparently my supplement habit has commitment issues. Filling them has been smooth, and the lock technology helps me waste less of my precious ingredients, which is great because I am not made of powder money. —Marcus Bennett

Me and the Clear Size 00 Empty Gelatin Capsules by Capsuline – 1000 Count – Gelatin Capsules – 1000 have become besties in my DIY supplement saga. I appreciate that they are kosher and halal approved, with no pork, additives, or contaminants, because I like my capsules as drama-free as possible. The capsules look clean, feel sturdy, and work well when I’m making my own vitamins and nootropic mixes. I also love that the company offers US-based customer service and a satisfaction guarantee, which makes me feel like someone has my back if my kitchen turns into a capsule carnival. —Nora Whitman

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Why Size 00 Capsules Is Necessary

I find Size 00 capsules necessary because they give me a practical balance between capacity and ease of use. When I need to fill a supplement or powder that is too much for smaller capsule sizes, Size 00 gives me enough room without becoming too difficult to handle. It helps me keep my preparation simple, efficient, and consistent.

My experience is that these capsules are especially useful when I want to reduce the number of capsules I need to take each day. Since they can hold more material than smaller sizes, I can save time and make my routine more convenient. This is important to me because I prefer a solution that is both effective and manageable.

I also like Size 00 capsules because they are versatile. I can use them for different powders, herbs, or custom blends, which makes them a reliable choice in many situations. For me, that flexibility is one of the biggest reasons they feel necessary.

My Buying Guides on Size 00 Capsules

What I Look for in Size 00 Capsules

When I shop for Size 00 capsules, my first priority is fit and consistency. I want capsules that are uniform in size, easy to fill, and reliable in how they close. Since Size 00 is one of the most common capsule sizes, I also pay attention to whether the product is made for my intended use, whether that is supplements, herbs, or custom formulations.

Material Matters to Me

I always check what the capsules are made from. Some Size 00 capsules are gelatin-based, while others are vegetarian or vegan options made from plant-based materials like HPMC. If I want a traditional capsule, gelatin may work well for me. If I prefer a plant-based choice, I look for vegetarian capsules that still feel sturdy and dissolve properly.

Ease of Filling Is Important

For me, the best Size 00 capsules are the ones that are simple to fill without cracking or sticking. I look for capsules that separate easily and hold their shape during the filling process. If I’m filling them by hand, I prefer capsules that are smooth and consistent because that saves me time and frustration.

Quality and Durability

I always consider capsule quality before buying. Good Size 00 capsules should not be brittle, overly soft, or prone to breaking. I also check reviews or product details to see if the capsules resist moisture and maintain their integrity during storage. In my experience, better-quality capsules make a big difference in performance.

Compatibility With My Ingredients

I make sure the capsules I choose are suitable for the ingredients I plan to use. Some powders are fine and flow easily, while others are sticky or dense. I look for capsules that can handle my specific formulation without leaking or becoming difficult to seal. This is especially important when I’m working with herbal blends or supplements.

Storage and Shelf Life

I pay attention to how the capsules should be stored. Size 00 capsules can be sensitive to humidity and heat, so I prefer products that come in sealed packaging and have a good shelf life. Proper storage helps me keep them usable longer and prevents issues like warping or becoming too dry.

Price vs. Value

When I compare options, I don’t just look at the lowest price. I think about value, which includes quality, ease of use, and consistency. Sometimes I spend a little more for capsules that perform better and save me trouble later. For me, that is usually worth it.

My Final Buying Tip

If I’m choosing Size 00 capsules, I focus on material, quality, ease of filling, and how well they match my ingredients. The best choice for me is the one that fits my needs consistently and makes the filling process smooth from start to finish.

Final Thoughts

I’ve found that Size 00 capsules offer a practical balance of capacity, ease of filling, and versatility for a wide range of supplements. My takeaway is that they’re a reliable choice when I want a capsule that can hold a meaningful dose without being too large to swallow comfortably. Overall, I think they’re a solid option for anyone looking for a convenient and adaptable capsule size.

Author Profile

Caleb Hartley
Caleb Hartley
Caleb Hartley is the founder and editor of RecoolingTech, where he writes about cooling products, outdoor comfort gear, sports accessories, and practical everyday equipment.

Based in Greenville, South Carolina, Caleb works as a facilities maintenance coordinator and has years of hands-on experience with equipment, upkeep, durability, and practical purchasing decisions.

He started RecoolingTech in 2026 to help readers look past flashy marketing and focus on what actually matters in real use. His reviews are shaped by a simple question: will this product still feel useful after the excitement of buying it wears off?