The Pfizer-owned liquid capsule manufacturer specialises in capsule manufacturing for the nutraceutical, pharmaceutical and over-the-counter markets.
The company has announced the introduction of its pearlised liquid capsule range, combining a light-reflecting pigment with its specific capsule shell material, to produce the pearly, iridescent effect.
This introduction builds on Capsugel's January launch of pearled capsules for dry powder-fill applications.
The effect is achieved through a light-reflecting pigment, called Candurin, instead of colorants, which is a crucial development for formulators who wish to keep their labels as clean as possible.
Capsugel's director of sales Robert Whitelaw said: "The success of both the pearl-effect capsules and Capsugel's proprietary Licaps liquid delivery system made for an ideal product extension.
"This aesthetic and eye-catching pearled effect can add sophistication to Licaps brand products. It helps make visually bland formulations more attractive. The use of shiny or metallic colours can fashion distinctive appearances to differentiate brands."
Candurin can be used alone to produce a pearl white capsule, but can also be mixed with other approved dyes to create a palette of pearled colours of pink, green, turquoise, purple, powder blue, orange, charcoal, as well as various two-colour combinations.
In addition, it can be formulated into metallic colours previously unavailable in capsules, such as bronze, silver, and gold.
Whitelaw added that the Licaps brand is well known for its distinctive technology that can help preserve the potency of oxygen-sensitive liquid fills. After a capsule is filled with liquid, it is flushed with nitrogen to purge oxygen from the final sealed product.
The firm added that the pearl effect dry powder capsules launched earlier this year have been "well received" in the oral cosmetics products and sports nutrition markets.
Whitelaw said: "The pearlescent look can complement and capitalize on the trend toward 'beauty from within' in both market segments. Shiny, iridescent packaging and displays are in vogue, and now the product itself can look as distinctive."
