What is a Liquid Capsule?
Liquid-filled capsules vs softgels

A Liquid Capsule uses the same two-piece hard capsule as a powder capsule, but is filled with liquid instead of powder. The joint between body and cap is then sealed so the liquid cannot leak. Fills are usually oils or oil-soluble extracts.

With a clear capsule, customers can see the colour of the liquid inside, which signals a liquid extract at a glance.

• Use liquid extracts directly. No need to convert oils or liquid extracts into powder before filling.
• A distinctive look. A clear capsule showing the liquid inside looks modern and stands apart from ordinary powder capsules.
• Room for specialty formats. The industry also pairs liquid fills with Double Capsules, for example liquid in one layer and powder in the other. Feasibility depends on the formula; R&D assesses it.

• Liquid–shell compatibility. Fills with little or no water usually work best, as water can deform the capsule shell. R&D tests this before production.
• Viscosity and fill volume. These affect filling and the capsule size chosen (size 00, 0 or 1).
• Sealing and stability. Samples are checked for leaks and appearance before production is approved.
• Thai FDA registration. A Liquid Capsule is a food supplement and needs a 13-digit food serial number. Our team prepares and files it.

Mark Bio handles every step: brief, formulation, samples, Thai FDA filing, packaging, production, quality checks and delivery. The factory holds ISO 22000:2018, HACCP, GHP, HALAL and a Thai FDA Certificate of Manufacturer.

Minimum order starts at 5,000 units per formula; production takes about 30–60 days depending on format and packaging.