Caffeine

What is it? Caffeine is a stimulant, commonly found in coffee and tea.
INCI Caffeine
Appearance Fine white powder
Usage rate 0.1–1%
Scent Nothing very noticeable
pH 6.9 (1% solution)
Solubility Water
Why do we use it in recipes? Caffeine increases circulation and reduces puffiness, making it a popular ingredient in products for mature skin and under-eye applications. It can also help reduce water retention, creating a slimming effect.
Do you need it? No
Refined or unrefined? It is best to purchase isolated, concentrated caffeine.
Strengths Very effective de-puffing active.
Weaknesses Not a good choice for anyone sensitive to caffeine.
Alternatives & Substitutions I don’t know of anything terribly suitable; there are some caffeine extracts made from ingredients that contain caffeine (like tea or coffee) that are less concentrated than caffeine powder.
How to Work with It Include in the water phase of your formulations; it can be hot or cold processed as needed.
Storage & Shelf Life Stored somewhere cool, dark, and dry, caffeine should last approximately four years.
Tips, Tricks, and Quirks I’ve heard stories from people who have applied large amounts of caffeine creams before going to bed and then being unable to sleep, so tread lightly with pre-bedtime applications!
Recommended starter amount 10g (0.35oz)
Where to Buy it Buy it from an online DIY ingredient supplier or Amazon.

Some Recipes that Use Caffeine

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