Palm oil is a popular ingredient in shampoo bars because it adds hardness, creates a stable lather, and helps the bar last longer. However, conventional palm oil production has been linked to deforestation, habitat loss, and human rights concerns. The good news is that you can source palm oil responsibly by focusing on certified sustainable palm oil (CSPO) and building a transparent supply chain.

Understand what “sustainable palm oil” really means

The most widely recognised standard is the Roundtable on Sustainable Palm Oil (RSPO). RSPO certification means the oil was produced according to environmental and social criteria, including no deforestation on primary forests, protection of peatlands, and fair treatment of workers. But not all RSPO palm oil is identical. You need to know which supply chain model you are buying:

  • Identity Preserved (IP): The palm oil is kept separate from conventional oil all the way from a single certified plantation to your supplier. Highest level of traceability.
  • Segregated (SG): Certified palm oil from multiple certified mills is kept separate from conventional oil. You can label your product as containing certified sustainable palm oil.
  • Mass Balance (MB): Certified and conventional palm oil may be mixed during transport or refining, but the amount of certified oil is tracked administratively. This is more affordable and still supports sustainable production, but you cannot claim the physical oil is 100% certified.
  • Book and Claim / RSPO Credits: You buy credits to support certified production, but the physical palm oil you receive is not necessarily certified. This is often a starting point for small brands.

Steps to source sustainable palm oil for your shampoo bars

  1. Identify every palm-derived ingredient you use. Shampoo bars often contain more than just “palm oil.” Look for sodium palmate, sodium palm kernelate, glycerin, stearic acid, cetyl alcohol, and many emulsifiers that may be derived from palm. Ask your supplier for the origin of each ingredient.
  2. Request RSPO certification documents. Ask suppliers for their RSPO certificate and confirm which supply chain model applies. A credible supplier will provide certificate numbers and be willing to share traceability documents.
  3. Choose the right supply chain model for your budget and goals. If you are a small or growing brand, Mass Balance is often the most practical first step. If you want to make a strong on-pack claim, aim for Segregated or Identity Preserved.
  4. Verify suppliers through the RSPO database. Check the RSPO member directory and PalmTrace platform to confirm that your supplier and the mills in the supply chain are certified. Do not rely on a supplier’s verbal claim alone.
  5. Request a signed supplier declaration. Have your supplier confirm in writing that the ingredient supplied is RSPO-certified and specify the supply chain model. Keep this on file for audits and label claims.
  6. Consider additional certifications. Look for organic palm oil that is also RSPO-certified, or certifications such as Rainforest Alliance or Fair Trade if they align with your brand values. These can add extra assurance but may be harder to find.

Ask suppliers the right questions

Before committing to a supplier, ask these key questions to avoid greenwashing:

  • Is this ingredient RSPO-certified, and which supply chain model applies?
  • Can you provide a valid RSPO certificate and traceability documents?
  • Is the palm oil derived from a specific region or smallholder cooperative?
  • Do you offer Mass Balance, Segregated, or Identity Preserved options for this ingredient?
  • Can you guarantee no deforestation, no peatland development, and no exploitation in your supply chain?
  • Will you notify us if the certification status changes?

Alternatives to palm oil in shampoo bars

Some formulators choose to avoid palm oil entirely. Alternatives include cocoa butter, shea butter, coconut oil, babassu oil, and mango butter. Each has different fatty acid profiles, so you may need to adjust your recipe to maintain hardness, lather, and shelf life. Babassu oil is often considered the closest direct substitute for palm kernel oil, but it is more expensive and less widely available.

If you do use alternatives, make sure they are also responsibly sourced. Shea and cocoa butter have their own supply chain issues, including fair wages and child labour risks, so apply the same level of scrutiny.

Labelling and communicating with customers

Be honest about what you are sourcing. If you use Mass Balance palm oil, do not claim your shampoo bar “contains 100% certified sustainable palm oil” unless you are using Segregated or Identity Preserved. Instead, say something like “made with RSPO Mass Balance palm oil” or “supports certified sustainable palm oil production.” Consumers appreciate transparency, and accurate claims build trust.

Final checklist for sustainable palm oil sourcing

  • Map every palm-derived ingredient in your shampoo bar formulation.
  • Choose RSPO-certified suppliers and request certificates.
  • Decide on a supply chain model: Mass Balance, Segregated, or Identity Preserved.
  • Verify suppliers in the RSPO database.
  • Keep documentation for every batch and supplier.
  • Label your products accurately and avoid vague “sustainable” claims.

Sourcing sustainable palm oil takes effort, but it is one of the most impactful choices you can make as a shampoo bar manufacturer. Start with RSPO certification, ask hard questions, document everything, and communicate honestly with your customers.