Best quote from Cosmetic Chemistry and Online Stocks for Beginners
The goal of this early stage is to build a 'stable emulsion' of knowledge that won't separate the moment the market gets volatile or a formulation fails a stability test.
This audio lesson was created by a BeFreed community member
I want one to teach me chemicals for cosmetics and how to learn stocks online
Frequently Asked Questions
Starting with anhydrous (water-free) balms is considered the safest way for beginners to master the fundamentals of melting points and ingredient behavior. Complex emulsions, like lotions and creams, require balancing oil and water phases using emulsifiers and preservatives. By starting with balms, a hobbyist can learn how different waxes and oils interact without the immediate risk of the product separating or growing mold, which are common challenges in water-based formulations.
The HLB system is a numerical scale from zero to twenty that categorizes chemicals based on whether they are more "oil-loving" or "water-loving." To create a stable oil-in-water cream, a formulator must select an emulsifier with a high HLB value, typically between eight and eighteen. If the wrong balance is chosen, the mixture will undergo "creaming" or "cracking," where the oil and water separate. This separation is not just an aesthetic issue; it is a safety failure because the preservative system, usually housed in the water phase, can no longer protect the oil phase from microbial growth.
Professional formulators view a product as a structured system rather than a random mix of ingredients. At the bottom of the hierarchy is the base, such as water or oil. Above the base are functional ingredients like emulsifiers and thickeners that provide the product's physical structure and stability. Only at the very top are the "actives," such as Niacinamide or Hyaluronic Acid, which provide specific skin results. If the base and functional layers are weak, the expensive active ingredients will likely degrade or fail to penetrate the skin effectively.
While natural ingredients are popular for marketing, they are often chemically complex and unpredictable, making them prone to oxidation and batch-to-batch variation. Synthetic ingredients are frequently "nature-identical" or highly purified versions that offer greater stability and safety. For example, a synthetic version of Vitamin C is often preferred because it is less likely to irritate the skin and more stable than a raw natural extract. A professional approach involves using both strategically, such as pairing a natural carrier oil with a synthetic preservative to ensure the product remains shelf-stable.
In skin biology, the "margin of safety" relates to protecting the skin barrier—the "bricks and mortar" structure that prevents dehydration and damage. In the stock market, this concept translates to building a resilient portfolio that can withstand market volatility. Just as a formulator uses occlusives to seal in moisture and protect the skin, an investor uses "barrier protection" strategies, such as maintaining cash reserves or high-quality bonds, to prevent "DNA damage" to their wealth during a market crash. In both fields, prioritizing the health of the barrier ensures that long-term growth is sustainable.
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From Columbia University alumni built in San Francisco
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."
"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."
"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."
"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."
"Reading used to feel like a chore. Now it’s just part of my lifestyle."
"Feels effortless compared to reading. I’ve finished 6 books this month already."
"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."
"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."
"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"
"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
