Who We Are

Welcome to Custom Synthesis, LLC. We are a Specialty Chemical manufacturing facility located in the beautiful Upstate of South Carolina. Specializing in toll arrangements and relationships, Custom Synthesis, LLC has been built with one goal in mind, to supply our products and services in a timely and cost effective manner. Our goal is to exceed every customer’s expectations. Please feel free to look around or ask questions if you like.
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Sustainability Statement

At Custom Synthesis, LLC, sustainability is a fundamental concept that guides our operations, planning, and partnerships. As a small specialty chemical manufacturer serving the cosmetics, personal care, plastics, oil field, aerospace, automotive and related industries, we are committed to delivering high-performance, responsible solutions that align with our customers' values and the growing demand for sustainability.

We are proud to be RSPO (Roundtable on Sustainable Palm Oil) certified, ensuring that palm-derived ingredients in our supply chain support sustainable agriculture, protect biodiversity, and promote fair labor practices. Additionally, our ISO 9001:2015 certification reflects our commitment to quality, continuous improvement, and responsible management systems that support both operational excellence and environmental stewardship.


Our sustainability commitments include:

  • Responsible Sourcing
    We prioritize ethically sourced and renewable raw materials, with a strong focus on transparency and traceability across our supply chain. Our RSPO certification underscores our dedication to sustainable ingredient sourcing.
  • Green Innovation
    Our R&;D strategy is built on the principles of green chemistry. We develop custom formulations that are effective, safe, and environmentally conscious-minimizing the use of hazardous substances and maximizing biodegradability and consumer safety.
  • Environmental Responsibility
    Custom Synthesis, LLC actively works to reduce waste, lower emissions, and conserve water and energy in our processes. We also continuously evaluate packaging and shipping practices to reduceenvironmental impact.
  • Compliance and Quality Assurance
    Our ISO 9001:2015 certification ensures a systematic approach to quality, customer satisfaction, and regulatory compliance, helping us deliver consistent, responsible solutions across all operations.
  • Collaborative Engagement
    We collaborate with clients, suppliers, and industry groups to foster sustainability across the personal care and cosmetic sectors. We believe that shared knowledge and innovation are essential for a more sustainable future.


At Custom Synthesis, LLC, we empower our partners to create cleaner, safer, and more sustainable products—without compromising on performance. Together, we are helping to shape a more ethical and environmentally conscious future for the markets we serve.

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