Personal care ingredients: from raw material to formulation

Developing a personal care product requires a careful balance between performance, formulation requirements and the growing demand for transparency.

Every oil, fatty acid, emulsifier and functional ingredient can influence how a product is processed, how stable it remains and how it performs in its final application.

At Castor International, we work with Castor-based materials, oleochemicals and plant-derived raw materials for a range of Personal Care applications. Our role is to connect suitable ingredients with customer requirements, supported by sourcing knowledge, documentation and supply chain coordination.

Understanding ingredients in practice

A technical specification provides important information about an ingredient, but formulation performance depends on more than parameters alone.

Compatibility with other ingredients, processing conditions, viscosity, stability and texture can all affect the final result. An ingredient may support emulsification in one formulation, while contributing to consistency or dispersion in another.

This is why application context matters. Understanding the intended formulation helps determine which ingredient, grade or source is most suitable.
 

Important raw material groups for personal care

Castor oil and derivatives

Castor oil is a plant-based oil with a distinctive chemical structure. It is used in various Personal Care and cosmetic formulations.

Castor oil derivatives, including Hydrogenated Castor oil, can provide additional functional properties. Depending on the formulation, these materials may contribute to consistency, dispersibility, texture and stability.
 

Fatty alcohols and fatty acids

Fatty alcohols and fatty acids are widely used as functional building blocks in Personal Care formulations.

They can support thickening, emulsification, conditioning and texture development. Their suitability depends on factors such as chain length, feedstock, purity and the technical requirements of the formulation.

Plant-based sourcing is also receiving more attention as manufacturers assess ingredient origin, documentation and traceability.
 

Lecithins and vegetable oils

Lecithins are natural emulsifiers that help combine oil in water phases. They can also support dispersion, texture and processing performance.

Vegetable oils from sources such as Soy, Sunflower and Rapeseed provide additional formulation options. Each source has its own characteristics, availability and documentation requirements.

The right choice depends on the intended application, required functionality and customer specifications.
 

Glycerin

Glycerin is widely used in Personal Care formulations because of its moisture-retaining properties.

It is applied in products such as skin care, hair care, soaps and cleansing formulations. Different purities and grades are available depending on the intended use and applicable quality standards.

Reliable sourcing remains important, as developments in biodiesel and vegetable oil markets can influence global availability.
 

Insights from In-Cosmetics Paris

During a recent visit to In-Cosmetics Paris, Arthur de Raad met with suppliers, partners and other professionals from across the Personal Care industry.

The exhibition offered a useful view of current developments in raw materials and formulations. Conversations focused on how ingredients perform in practice, how sourcing and availability influence product development and which requirements are becoming more important for formulators.

The visit also provided an opportunity to reconnect with existing partners and continue discussions face to face.

Events such as In-Cosmetics bring together ingredient suppliers, formulators, technical specialists and product developers. They help translate wider market developments into practical formulation questions.
 

Traceability and documentation

Customers increasingly require clear information about the origin, composition and quality of their ingredients.

Accurate product specifications, safety data sheets, certificates and supplier documentation support informed purchasing and formulation decisions. They also help customers meet internal quality standards and applicable regulatory requirements.

At Castor International, supplier assessment, documentation and quality management are part of the daily process behind sourcing and supplying raw materials.

This structured approach supports consistency, traceability and confidence throughout the supply chain.
 

Supporting personal care formulation

Personal Care product development brings together raw materials, technical requirements, documentation and logistics.

Castor International supports customers by combining product knowledge with an international supplier network and coordinated logistics. This includes identifying suitable raw materials, supporting sample processes and coordinating information around specifications, availability and delivery.

The objective is to understand where an ingredient fits within the formulation and how it can be sourced reliably.

As the Personal Care market continues to develop, close cooperation between suppliers, formulators and customers will remain important.

Castor International continues to strengthen its activities in this sector by staying close to market developments, maintaining supplier relationships and focusing on the practical requirements behind each application.