205 - What Changes in Humidity

207 - What Changes With Formulation

This week we look at how formulation shapes the way skincare ingredients perform. Ingredient lists are often used as a shortcut for evaluation, but they only show what is present, not how those ingredients are working within the formula. We walk through the main factors that influence performance. Concentration determines how much is available to the skin. The base formula affects how ingredients are delivered. Interactions between ingredients can support or limit their effect. We also touch on how ingredients can appear more prominent than they are, and why that can make products harder to evaluate at a glance. These variables work together. They shape how a product behaves, how it feels on the skin, and how consistent it remains over time. Taking formulation into account makes it easier to move beyond the list and evaluate products in a more complete way.

Suhu 206 - What Changes When Ingredients Travel

This episode explores how skincare ingredients are shaped long before they reach your skin. Ingredient lists show what is present in a formula, but they do not capture the full set of decisions that influence performance. We walk through the lifecycle of a product, starting with sourcing. Climate, soil, and timing all affect the composition of raw materials. From there, processing changes structure and function. How an ingredient is handled can influence its stability and how it behaves in a formula. After formulation, stability becomes the focus. Exposure to light, air, and temperature can continue to affect performance over time. These stages are connected. Each one contributes to how a product ultimately performs on the skin. Understanding this makes it easier to evaluate products based on more than the ingredient list alone.

205 - What Changes in Humidity

This episode begins our Spring Reveals series with a focus on humidity and how it shapes skin behavior. Humidity changes how water moves through the skin. It influences hydration levels, barrier function, and how your routine feels from one day to the next. In higher humidity, water loss slows and skin can feel more hydrated, but oil and congestion may increase. In dry air, water leaves the skin more quickly, which can weaken the barrier and lead to tightness or irritation. We discuss how to recognize these shifts and when an adjustment is actually needed. Small, consistent changes tend to support the skin better than reactive ones. Understanding what is changing in your environment makes it easier to respond in a measured way.

Suhu 204 - How Packaging Affects What's Inside

In this episode, we talk through something that’s easy to overlook in skincare: packaging. We often think of packaging as design or sustainability, but it plays a direct role in how well a product actually holds up over time. We get into how exposure to air, light, and heat can affect a formulation, and why material compatibility matters more than most people realize. We also spend time on the tradeoffs. Packaging decisions aren’t just about reducing waste or improving aesthetics. They’re about finding a balance between protecting the product and thinking carefully about long-term impact. The goal of this conversation is to make that system a little clearer.

Suhu 203 - Where Ingredients Actually Come From

This week we dive into the origin and processing of cosmetic ingredients, emphasizing the importance of understanding the journey of ingredients from agriculture to formulation. We also explore the chemistry of plant oils, the role of fermentation in skincare, and the distinction between natural and synthetic ingredients. Additionally, we highlight the impact of farming practices on ingredient quality and sustainability. Takeaways * Understanding the journey of cosmetic ingredients from agriculture to formulation is crucial for evaluating quality and sustainability. * The distinction between natural and synthetic ingredients is not as straightforward as it seems, and the impact of farming practices on ingredient quality is significant.