Emulsifiers you will love: What’s the deal with methyl glucose sesquistearate (TEGO® Care PS MB), an emulsifier found in Brazilian Bum Bum cream?(Updated May 12, 2025)

In the monthly Q&A, Kristina asked, Me again ;), I’ve decided to go back to “basics” for a minute. I have hit a wall and have gone back to product studies to try and ferret out some mysteries (which isn’t a very scientific word I know 😂). Question: Methyl Glucose Sesquistearate – this is an...

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#alltheingredients: Eyeseryl® Solution B – active for eyes!

A bottle of Eyeseryl - a clear liquid - sits on a digital scale.

Eyeseryl® Solution B – also found as EYESERYL® peptide solution B – (INCI: Water (and) Butylene Glycol (and) Acetyl Tetrapeptide-5) is an active ingredient used in eye care products to reduce puffiness and dark circles while improving skin’s elasticity around the eyes. Let’s take a look at this awesome water soluble active ingredient we can...

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#alltheingredients: Polyquaternium-11 – cationic polymer for hair and skin care products

A bottle with polyquaternium 11 sits beside a beaker with a clear, thickened liquid on a digital scale.

Let’s meet this new-to-me cationic polymer, polyquaternium-11, a clear, viscous, odourless liquid conditioning ingredient that offers anti-static, film forming, skin conditioning, and hair conditioning properties along with improved curl retention that can be used in hair and skin cleaners as well as hair conditioners. Before we start… Check out my enormous hair chemistry & hair...

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#alltheingredients: Sepimax ZEN (INCI: Polyacrylate Crosspolymer-6) – Rheology modifier

I was astonished to see such weird information about Sepimax ZEN (INCI: Polyacrylate Crosspolymer-6) out there as I surfed the ‘net and social media over the holidays, so I had to update the ingredient profile on this gorgeous gelling rheology modifier that was designed to handle electrolytes like no other! Here are some posts that...

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Creating an Age-Defying Sheet Mask with peptides with Natalie Skiller – part one: Inspirations and the chemistry of peptides! 

Variety of sheet masks on pink spotted tray

Woo hoo! Another series of posts from the always amazing Natalie Skiller, known as the awesome formulator for Sweet Little Crumb (Facebook, Instagram, and her new Patreon, This Formulating Life!). In this one, she’s teaching you how to make an awesome Age-Defying Sheet Mask with peptides and other gorgeous actives! Love Natalie’s work? Check out...

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