[julianrebecca]

I think on youtube, the institute of personal care science channel has a video on colour changing lip gloss. 👍

[julianrebecca]

Hi Levita,

Have you considered making a condensed surfactant?

You can utilize your experiment, add a surfactant and preservative then pour into ice cube trays or molds before it hardens?

Then you can add a cube to water and boom you have your shower gel!?

[julianrebecca]

I just realized the oil phase may stick to the cool sides of the beaker before it has a chance to hit the water phase.

So, can you change the 4% Olivem1000 to 2% please and increase the water phase by 2% to compensate.

Another way to negate the above-mentioned risk is to mix and heat the oil phase in a stainless steel bowl, this ensures it wont stick to the cool edges as you try to pour it into the water phase.

Sorry about that. Those are my 2 new suggestions.

[julianrebecca]

I like your ideas and understand why you have chosen those materials.

I am a chemist and worked for 4 cosmetic manufacturers (predominantly as a quality manager) but I recommend to start with a basic formula first. That way you can adjust the viscosity, rub in and skin feel before wasting your extracts.

Example Basic Moisturiser

83.1 % Water (most purified DI or RO water you can get)

3% Glycerin

0.2% Xanthan Gum (mix the glycerin and gum together till smooth and no lumps, then slowly add it to the water till the water has slightly thickened)

Heat those three ingredients (water phase) in a bowl/beaker

4% Olivem 1000

0.5% Mango Butter

8% Oil (of your choice)

Put them all (oil phase) in a separate bowl/beaker and also heat.

Once both water and oil phases reach 65C pour the oil into the water.

Use a stick mixer to emulsify both phases together and once below 40C add

0.2% Vitamin E

1% Microcare SB (sodium benzoate and potassium sorbate)

I worked for a certified organic skincare company who used Leucidal and Elderberry as the preservative and 70K worth of product burst out of its packaging (Yeast & Mould and bacteria contamination) and the products were sent back to us in a shipping container from China.

The owner of the company was the R&D formulator and despite our objections rushed the formulations into production in order to secure the contract. Despite losing the contract and tarnishing their reputation, they still were set on using that preservative. Long story short. I dont recommend using those materials as preservatives.

Good luck on your journey.

As you learn and grow you will develop a liking for different materials and once you have a basic formulation locked in. You can start adding extracts and monitoring whether each has an effect.

[julianrebecca]

Please elaborate. Are you making a tanning cream?

Would you like the cream to stain? Or did you make a cream that stains the skin and dont know why?

[julianrebecca]

Wow! What an amazing opportunity!

[julianrebecca]

Hi Perry,

I have taken note of suggestions within your reply to the poster.

Can I please ask a question?

What is the correct thing to do for curly hair that has been straightened and lost its natural curl pattern? Are there materials that you suggest to incorporate into products that would restore the orignal curl pattern?

[julianrebecca]

Hi Megi,

It appears to be a gel serum with the capsules suspended in it. Have you tried the product? Do the capsules dissolve on application? I haven’t used those before.

I have used Unispheres (NT range) - Which are tiny beads that are composed of Mannitol, Cellulose and Hydroxypropyl Methylcellulose. Each material in the NT range incapsulates different raw materials, For example NT 2403 encapsulates retinyl palmitate for example, others a tocopherol, others hyaluronic acid etc and they dissolve as you rub them in.

We made a basic water based gel serum using Sepimax Zen (Polyacrylate Crosspolymer-6) as the thickener. Adding the unispheres at the end.

[julianrebecca]

Thanks so much for sharing your thoughts and expertise. I think I will go with tubes 👍

I was predominantly a quality manager and various other roles (inventory management, R&D, purchasing) for four large cosmetic manufacturers spanning ten years, (prior to this I studied cosmetic chemist and quietly nurtured my passion) subsequently I have higher standards than the average person so I don’t give my products to family to try because in the past when I did that, their opinion was too biased. All I got back was good feedback.

Im thinking as I move forward. I will create samples and give to target customers for feedback.

Thank you 🙏 I really appreciate your suggestions.

[julianrebecca]

I like the aroma of naticide and yes your right it is a mystery chemical.

Wow I am learning alot from you, I didn’t know challenge testing is, bacteria/fungi on a water droplet, so what your saying is the balm is too thick to be challenge tested because the water droplet won’t migrate wow that’s interesting.

Perhaps I reduce the water content to make it inherently self preserving but that brings me back to the other great points you made. Fungi from humidity exposure, what if I change the packaging to an airless jar or tubes? Would that negate the risk?

[julianrebecca]

Hello, I appreciate your suggestion.

I have searched for the material and admittedly, I have never used it before!

What are the best applications or ways you have used the material?

I like to learn new things, so I am interested to hear your experiences with it.

[julianrebecca]

Hello, I appreciate your suggestion.

I have searched for the material and admittedly, I have never used it before!

What are the best applications or ways you have used the material?

I like to learn new things, so I am interested to hear your experiences with it.

[julianrebecca]

Thank you. Yes hot fill. Jar pot/lid packaging.

I’ve been experimenting with the ratios while using the product. It performs well. It surpassed expectations.

Your right, as it is now I don’t expect it would pass PET. But since speaking with you, I am considering experimenting with the method, to determine whether the temperature is the catalyst or the byproduct.

Should I use naticide perhaps? As it’s water soluble at 0.6% and heat stable upto 80C.

Optiphen Plus is oil/glycol soluble which isn’t the portion of the formula I’m worried about so maybe I should switch?

[julianrebecca]

Hello, I appreciate your advice and willingness to understand.

I would consider it a water in oil.

The reaction that takes place is what causes the materials to thicken into a balm, its quite novel.

But when i test the temperature after the reaction, it has reached above 100C so i wonder whether the temperature is also a factor or the catalyst to the reaction?