Cooling All-Over Serum (Free Post)

This is part of the #summer2024formulationchallenge Allison and I are doing on Instagram. Check this post for the rules, https://www.instagram.com/p/C8cfLG7RjnQ/?igsh=MzRlODBiNWFlZA== I wanted to make a post on this formulation and talk a little more about it. 

The cooling comes from three places the aloe vera liquid, cucumber hydrosol, and peppermint fragrance oil. I make a stock solution with 200x aloe vera powder. Aloe as we know has a lot of soothing properties. It can also have a cooling effect on irritated skin.
I chose a peppermint fragrance oil as it is what I have. I thought cucumber hydrosol would be a great addition to the mix.
I have already made a mist in a blog post (link), so I wanted to make a serum that could be applied where needed. My go to gelling agent is xanthan gum soft. It is a higher grade of xanthan gum that is more cosmetically elegant than standard grades. To process the xanthan gum, I slurry it with glycerin.
To incorporate the fragrance oil, I am including polysorbate 20. You can use another one at your own risk. 
For color I am using a extract powder from Essential Labs. It was gifted, however this post is not sponsored. It gives a lovely green color at 0.10%.
With all the botanicals I am adding a chelator. This will also help the color stay fresh as well.
This is the peppermint fragrance oil's IFRA documents, https://www.pandjtrading.com/cdn/shop/files/IFRA_PEP.pdf.pdf?v=12874798528747877678

Calculations:
100-(10+10+3+1+5+0.10+0.10+1+0.50)=69.3
69.3/2=34.65  

Method:
Sanitize all your equipment, containers, and workspace. Gather all your ingredients and make sure that your notebook is set up. In a glass beaker, add all your phase A ingredients. Stir until the ingredients are uniform. In a glass prep cup, weight out phase B, stir well. While stirring, add phase B into phase A to create phase A/B. In another separate glass prep cup, weight out phase C and mix well. While stirring add phase C while stirring as well to create phase A/B/C. Weight out phase D, add it to phase A/B/C. Mix well until uniform. Pour into final packaging. Be sure to label and date your latest formulation

Adjusting pH:
Adjusting pH (Dilution Method): Get two beakers; one will be used as our washing beaker, and the other will be used to make the dilutions. The main thing with making dilutions is you want to make enough that the probe can be covered. You can weigh out 1 gram of product and 9 grams of distilled water to make a 10% dilution. Or you can weigh out 2 grams of product and then 18 grams of distilled water. Get your pH meter out and rinse with distilled water into the other beaker I had you get. Dry off the meter with a lint-free product. Mix it well and take the pH. If you are using strips, do not make a diluted solution no matter the viscosity; or the pH will be way off. Do not put the strips directly into the product. Even if you are taking the pH of the product directly, you want to add your product into a separate beaker. Wait for the reading to be stable, take a note of the pH, and discard the Sample after. Then put the product on the scale and tare it. Add 0.10g either the 50:50 citric acid solution (to lower the pH), the sodium hydroxide (to raise the pH), or TEA (to raise the pH of the product). Stir well, then wait at least 1 minute before making another dilution. Keep repeating the process until you get the desired pH. You will be surprised how much it may take. I recommend making a bigger batch than you want so you can account for that.
​
Substitutions and Alterations:
Substituting ingredients will change the final feel, viscosity, and overall effect of final product. percentages and formulating procedure may need to change with substitutions. These substitution suggestions are just suggestions and have not been tested to work.
To find out where to purchase ingredients check out the ingredient suppler page. ​

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• Two posts per week plus additional behind-the-scenes posts.
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• Instagram Group Chat: to contact me directly. I can also give advice there.
• Information Section:
• Includes Suppliers, Other Bloggers, Podcasts, Studies I have found, Courses and Books I recommend.
• Ingredient Guide: Don't know what an ingredient does? Find out the relevant information like percentages, descriptions, key benefits, and how to add it into formulas.
• Dictionary: Learn All the terms connected with Cosmetic Chemistry, Chemistry, and Organic Chemistry.
• Inspiration Station: Stuck and don't know what to make? Look no further than the inspiration station. Find tons of pictures for products. 
• Business Resources: I share all my resources to be a compliant cosmetics company.
• Q&A posts once a month
• Stuck on something? Request a video, and I will show you how to do it. 
• Makeup tutorials (Soon a Makeup Course)
• Input on next projects ;)
• Exclusive" What is Happening?" series
• Learn from my mistake as I detail some formulation issues that I run into and fix them. We all make mistakes.
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