When it comes time to formulate, there are a host of different steps and processes to keep in mind. The list below highlights principles to follow so that your formulation excels and your customers reap the benefits.
1. Formulations must be cosmetically appealing and delight the consumer.
2. When beginning a project, put together a formulation strategy outlining the various approaches you are considering along with a technical rationale.
3. Optimum formulation performance is always a series of trade-offs between product aesthetics, safety, stability, processing, and cost.
4. Don’t fall in love with technology, fall in love with consumer benefits. Creating product stories is easy when you’re delivering real benefits.
5. Make important formulation choices up front, keeping the end in mind.
6. Don’t develop technology in a vacuum. Always benchmark against the best formulations available.
7. The hallmark of great formulations is simplicity created by the use of multifunctional ingredients.
8. Always identify the show-stopping issues up front.
9. Use chelants and antioxidants in all formulations as an insurance policy to improve stability.
10. Manage risk by having multiple options (Don’t put all your eggs in one basket).
11. Start stability testing as early as possible on multiple options.
12. Always do your final stability testing in the package you will market.
13. Product viscosity at 40° or 45°C is an excellent predictor of long term emulsion heat stability.
14. Understand global regulations/restrictions regarding ingredient use.
15. Only use non-globally approved materials if the magnitude of the benefit warrants the effort.
16. Evaluate in-house raw materials first before qualifying new materials. This is especially true for excipient materials like emulsifiers, emollients, and thickeners.
17. Order of addition of ingredients can have a profound effect on process and stability.
18. Beware of the legal paper trail. Don’t speculate in areas outside of your area of expertise in writing.
19. Never kill technology because of cost.
20. Do a freedom to practice review early on your project to avoid running into patents issues.
21. Always understand the chemistry of the materials you are using. Avoid chemical interactions in the formulation as much as possible. Most cosmetic raw materials are mixtures of ingredients. The impurities and minor components often can affect product performance more than the major component.
22. Develop specifications for raw materials that are predictive of performance in product. This is especially important for thickeners and emulsifiers
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One Response to “Principles of Good Formulation Development”
I enjoy your articles and religiously shre them within our organization in atempts to strengthen our product offerings and to enhance the development process and stabilize exisiting formulations.
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Thank you for sharing your knowledge.