encapsulation material

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New Technologies Report -
Date:9th June , 2023
Microencapsulation for
cosmeceutical products

INTRODUCTION
• The pharmaceutical, food, cosmetic, textile, personal care, agricultural, chemical, biotechnology,
biomedical, and sensor sectors have researched microencapsulation extensively. Growing research in this
field can be attributed to the fact that microencapsulation can be used to formulate value-added
products.
• The global cosmetics and personal care products business is valued at several billion dollars and has
grown significantly. With more and more uses in this industry, microencapsulation has been employed to
create more reliable, efficient cosmetic formulations with superior sensory qualities.
• Sunscreens, perfumes, moisturising, tanning, whitening and anti-ageing agents are a few examples that
have been studied for microencapsulation. Other areas studied for microencapsulation include
formulation and stabilisation of topical medicines, recent and upcoming advancements, challenges, and
future developments [1].

• Microencapsulation has been extensively studied in skincare and beauty products for their application.
Vitamin A (VA), or retinol, is an antioxidant in skincare products.
• Examples include Vitamin A serum (retinol face serum), retinol face wash, retinol hand cream, retinol
peel and retinol cream for pigmentation.
• It restores skin suppleness and reduces flaking, thereby reducing skin dryness and improving skin
health.
• Jenning and others evaluated the potential applications of Solid Lipid Nanoparticles (SLN) in cosmetics
and dermatology by encapsulating VA in glyceryl behenate SLN via melt solidification [2].
Cosmetic active ingredients
encapsulated for topical application

Figure 1: Schematic diagram of microencapsulation technique [1]

Microencapsulation in cosmetics
• The cosmetics and personal care industries rely heavily on delivery systems and microcapsules. They
provide an ideal and one-of-a-kind carrier system for active ingredients, making it possible to release,
isolate, and protect active ingredients, making the formulations more viable, masking undesirable
aspects like the smell and enhancing the properties and appearance of the product.
• Microencapsulation can be used to formulate shower and shower gels, moisturisers and creams, hair
care products, sunscreens and tanning creams, cosmetics, fragrances, cleansers and exfoliants [3].

Figure 2: Schematic diagram of the encapsulation process [3]

Encapsulating materials for cosmetic applications
• The core material encapsulated is the active ingredient to be used, and the material depends on the final
cosmetic product where the capsules will be incorporated and the desired function.
• Other factors considered for choosing an encapsulation material are chemical and physical stability,
mechanism of release of the active ingredient, concentration and particle size.
• Toxicity, biocompatibility, stability, viscosity, and mechanical properties, compatibility between the active
ingredient and the wall material, the release of the active ingredient into the skin from the vehicle,
enhancement of active penetration into the stratum corneum, intended particle size and microscopic
properties of the surface of the microparticles, as well as the processing and economic factors, should all be
taken into consideration when selecting a wall material for use in topical applications.
• The right decision of the shell material is fundamental as it impacts the efficacy and protection of the
microcapsules.

Encapsulating materials for cosmetic applications
• Commonly used core materials in cosmetic products for topical application have been reviewed.
Encapsulating materials can be chosen from biodegradable and non-biodegradable polymers. Extensive
research has been conducted on protecting active agents in micro-sized carriers for controlled release over
time.
• Natural and biodegradable biopolymers like chitosan are preferred as encapsulating materials. When in
contact with human tissues, these natural materials are non-toxic, non-reactive, and can be broken down,
metabolised, and eliminated. Other polymers studied include aliphatic polyesters like poly(lactic acid) (PLA),
and copolymers of lactic and glycolic acids like PLGA (poly(lactic-co-glycolic acid)) are the encapsulating
materials that are more popular for use in skin delivery systems.
• However, the structure of chitosan can be altered to produce water-soluble chitosan, which is easily soluble in
neutral aqueous solutions and expands the compound’s application range[4].

• Consumers’ demand for improved efficacy and safety of the products has fuelled an interest in more
complex and sophisticated products.
• Microencapsulation of active ingredients has become increasingly popular in cosmetics and personal
care products since the functionality of the active ingredients can be enhanced, and the product has
added value. In addition, technological advancements have made microencapsulation more feasible.
Conclusion:

REFERENCES
• https://onlinelibrary.wiley.com/doi/full/10.1111/ics.12232
• https://www.sciencedirect.com/science/article/pii/S0268005X1932805X
• https://www.tandfonline.com/doi/abs/10.3109/02652048.2015.1115900
• https://onlinelibrary.wiley.com/doi/full/10.1111/ics.12017

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encapsulation material

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