Tagra has developed the RND™ Microencapsulation Technology, a patented method of providing stability, efficiency and controlled/immediate release for non-water soluble ingredients. This technology enables the production of encapsulated ingredients conforming to worldwide cosmetic regulations and suitable for a wide range of formulations.
Optimal Protection of the Inner Compound by a Proprietary Polymer
Tagra's microcapsules are made using a proprietary type of polymer that enables optimal isolation of the inner ingredient from the medium and the environment. Differently from other delivery systems, Tagra microcapsules prevent a diffusion process from and into the microcapsule. Therefore, the capsulated compound is optimally isolated from:
- Environment : light, temperature, pH
- Interaction with other ingredients
Controlled Release System- Patented Release on Demand™ RND™ Technology
Tagra uses different kinds of acrylic and cellulose polymers which are saturated with functional groups, such as carboxy and hydroxy. These polymers allow the microcapsules to remain rigid during their incorporation into formulations. After a 48 to 72H period, the polymers membranes become elastic, but still impermeable. As a result of this softening process, the encapsulated ingredient is released by mechanical rupture (such as a rubbing action, when the end product is applied to the targeted area).
For some encapsulated ingredient, such as Carbon Black or UV filters, Tagra's microcapsules remain unbreakable, avoiding any contact with the organ on which the end product is applied (eyelash/skin), and preventing any possiblity of skin penetration.
Tagra Innovative Solvent Removal Technology
Tagra's microencapsulation process brings innovative modification of the solvent removal technology. The process does not involve any chemical reaction and does not require any aggressive chlorinated solvents. Tagra's technology assures high quality of dried microcapsules with:
- no residual solvent
- no residual monomers
- narrow particle size distribution (micron size)
- high loading/payload
Ingredients Stability Increase in End Product
Tagra RND™ Microencapsulation process provides significant stability increase of non water soluble ingredients, like vitamins, for example. Such molecules are known for their sensitivity to temperature, which can result in fast degradation during production or storage. Therefore, by using Tagra's microencapsulation technology, the stability of such ingredients is maintained, ensuring optimal concentration of the ingredients until the moment the finish product is being used by the end consumer.
Tagra's microcapsules can be used in a pH range of 2 to 12 without alteration. This stability allows incorporation of complementary ingredients independent of the formulation acidity.
Tagra's microcapsules remain stable in a wide range of formulations, since they are almost not affected by other ingredients composing the base formulation.
All ingredients composing Tagra's microcapsules are known as GRAS (Generally Reconized as Safe), and are listed on the CTFA (Cosmetic, Toiletry and Fragrance Association). Some of those ingredients are also listed in the FDA's IIG (Inactive Ingredients Guide) list.
Moreover, the use of Tagra microencapsulated ingredients could facilitate end product registration, by
- Overcoming ingredients incompatibilities.
- Transforming nano molecules to non-nano systems.
- Preventing side effects such as skin irritation.