Can Sustainability Outperform Traditional Formulation? with Kailey Brandt
In this episode of Demystifying Cosmetics, Jennifer speaks with Kailey Brandt — chemical engineer and CEO of Sonsie — about what sustainability actually looks like when you move beyond marketing claims and into the real constraints of formulation, sourcing, packaging, cost, and consumer education. Together, they unpack why “natural” is not always more sustainable, how biotech is changing what’s possible in beauty, and why transparency has to go deeper than front-of-pack language.
The conversation also explores Sonsie’s “minimalist but efficacious” philosophy, why consumers do not need 40 ingredients in a face cream, how over-layering familiar actives like niacinamide can create irritation, and why product education may be one of the most overlooked costs in sustainable beauty. It’s a grounded discussion on performance, skin health, planetary health, and the tradeoffs brands still have to navigate behind the scenes.
Learn more at https://sonsieskin.com/
Takeaways:
Sustainability Has to Survive Real Product Development: Kailey breaks down the gap between sustainability marketing and the actual realities of sourcing, manufacturing, formulation performance, and cost.
“Minimalist but Efficacious” Is a Supply Chain Decision Too: Sonsie’s philosophy is not just about fewer steps for the consumer. It is also about reducing unnecessary complexity in formulas, sourcing fundamental ingredients better, and minimizing both skin irritation and environmental impact.
More Ingredients Do Not Automatically Mean Better Skincare: One of the clearest points in the episode is that brands do not need 40 ingredients in a face cream just to make a formula feel advanced or harder to copy.
Transparency Matters Most When It Changes Usage: Kailey explains why Sonsie shares active percentages and why ingredients like niacinamide, while effective, can become irritating when they appear across too many products in a routine.
The Industry Still Undervalues Product Education: Better packaging and better ingredients only go so far if consumers are not taught why they matter, how to dispose of them correctly, or what makes them worth paying for.
“Natural” Is Not a Shortcut to Sustainability: The episode pushes back on one of beauty’s biggest myths by showing how land use, water use, waste, seasonality, and life cycle analysis can make a synthetic analog the better environmental choice.