How to Fill Capsules with Oils or Liquids (Without Leaks)

Filling your own capsules with essential oils, tinctures, or other liquid supplements is a great way to take full control of what you consume. But many beginners worry about leaks, messes, or wasted ingredients. The good news? With the right tools and technique, you can easily fill capsules with oils or liquids at home—cleanly and safely.

✅ Why Fill Capsules with Liquids?

• Better absorption: Oils like fish oil or herbal extracts are often absorbed faster than powders.
• Precise dosage: Customize your formula and control your intake.
• Save money: Making your own is more affordable than store-bought softgels.
• Clean ingredients: No fillers, additives, or mystery ingredients—just what you choose.

🧰 What You’ll Need

• Empty Gelatin or Vegetarian Capsules (Size 00 or 0 recommended)
• Capsule Tray or Filling Holder – keeps capsules stable while filling
• Mini Funnel or Dropper – to guide liquids into the capsule body
• Essential Oil or Liquid Extract – your chosen supplement
• Gloves + Paper Towels – for cleanliness and safety
• (Optional) Vegetable Glycerin or Coconut Oil as a liquid base

🪛 Step-by-Step: How to Fill Capsules with Liquids

1. Separate the Capsules: Open each capsule and place the longer bottom half (body) into your capsule tray. Keep the shorter top half aside.
2. Prepare Your Liquid: If you're using pure essential oils, dilute them with a carrier oil like coconut or MCT oil (about 1:3 ratio). This prevents irritation and makes filling easier.
3. Use a Mini Funnel or Dropper: Carefully drop 2–5 drops of liquid into each capsule body using a pipette, syringe, or small funnel. Tip: Don’t overfill — stop before reaching the brim.
4. Seal the Capsule: Place the top half of the capsule over the filled bottom. Press gently but firmly to close.
5. Wipe + Store: Wipe off any residue and store capsules in a cool, dry place—preferably in an airtight container or the fridge.

🧠 Tips to Prevent Leaks

• Use thicker oils (like infused coconut oil) instead of thin alcohol-based tinctures.
• Avoid overfilling – this is the #1 cause of leaks.
• Store upright for the first few hours after filling to help the shell fully seal.
• Use capsules quickly – most capsules aren’t designed to store liquids for weeks.

🔄 Recommended Tools for Faster, Cleaner Liquid Capsule Filling

Want to make your capsule-filling process more efficient? Here are our top picks:

• ✅ 100-Hole ABS Capsule Tray – Holds capsules securely for faster, more stable filling.
• ✅ 25-Hole MABS Liquid Capsule Tray – Ideal for filling oils, tinctures, and concentrated liquids.
• ✅ 60-Hole Acrylic Capsule Filling Tray – Helps control droplet amounts manually and prevents spills.

👉 Check out our complete DIY capsule kits here →

🧪 Final Thoughts

Making your own liquid capsules can seem intimidating at first, but with a little care and the right tools, it’s a rewarding, cost-effective way to take your health into your own hands. Whether you're dosing essential oils, CBD, or herbal extracts, you’ll enjoy knowing exactly what’s inside each capsule.

Want to get started today? Explore our best-selling capsule trays and tools to make leak-free capsules at home.