Tag: butter

Formulating a lotion: Choosing the fats – THEORY pt.5

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My Lab Diary: The “Grease-Fall” (A Study in Balance)

Hello Hello! 😀

Today I want to talk about something very important when we make a cream: the Grease-Fall. I’ve been doing a lot of experiments lately because I wanted to understand why some of my creams felt “greasy” on my skin for a long time, while others disappeared too fast and my skin felt dry again.

I found out it’s all about the spreading velocity of the oils we use!

What is the Grease-Fall? Think of it like a waterfall of oils. If you only use one oil, like Olive Oil, it has one “speed.” But if you mix different oils, you can make a “cascade” where the skin feels good from the first second until many hours later.

In my lab notes, I divide my oils into three groups:

  1. Light Oils (The fast ones!): These are oils that spread very quickly. When you put the cream on, these are the ones that make it feel “silk” and not “fat.” I like to use things like Cetiol Sensoft or Dicaprylyl Ether.

  2. Medium Oils: These are the heart of the cream. They spread a bit slower than the light ones. Here I use my favorites like Argan oil, Jojoba, or Caprylic/Capric Triglycerides.

  3. Heavy Oils and Butters: These are the slow ones. They stay on top of the skin to protect it so the water doesn’t evaporate. Here I put my Shea Butter, Cocoa Butter, or Castor oil.

How I make my “Team of Oils”: I don’t just pick an oil because the marketing says it’s “miraculous.” (I don’t believe in miracles, I believe in INCI! 😉 ) I try to make a balance. For example, if I use 10% of oils in my cream, I don’t use 10% of Shea Butter. That would be like wearing a plastic mask!

I try to do something like this:

  • 3% Light oils

  • 4% Medium oils

  • 3% Heavy oils/butters

This way, the effect of rubbing the cream should be something like this :

  • First, the Light oils spread and it feels “Wow, so smooth!”

  • Then, the Medium oils take over.

  • At the end, the Heavy oils stay to protect the skin.

This is the secret to a professional cream! It’s not about the most expensive oil in the world, it’s about how you mix them.

It’s all in my hands! 😉

HAVE A GREAT DAY! 😄