Members Directory - Chemists Corner

Dtdang

Member

October 23, 2018 at 4:37 pm in reply to: CHAMOMILE EXTRACT OR ESSENTIAL OIL

Thanks Perry and EVchem

Dtdang

Member

October 20, 2018 at 7:00 pm in reply to: Cosmetic chemistry vs. product formulation?

@aliciacintora
It is difficult to answer your question
i just learn formulating the cream / lotion by myself for fun. But, I do have strong background on chemistry. It helps me learning fast. For example, lotion or cream is emulsion process to merge oil and water together and pH on final product to make sure in the range of pH of skin.On other side I do have background on herbs and skin structure and aging process. Those help to learn quickly.
The hlb system is also helpful to select emulsifiers and oils..,

Dtdang

Member

October 11, 2018 at 1:11 pm in reply to: what can i mix to make the scent in lotion/cream last longer and smells well?

@Dr. Pratt
i will. Thanks

Dtdang

Member

October 10, 2018 at 2:41 am in reply to: Emulsifiers for O/W Emulsions (Body Lotions)

Grease fall concept that I tried and it works well. You choose the oils that you want on the cream. Then you choose different oils with different density.
more details itsallmyhands.com

Dtdang

Member

October 9, 2018 at 11:11 pm in reply to: what can i mix to make the scent in lotion/cream last longer and smells well?

Friends! I found that there are very practical techniques making scents lasting longer
50% top note
33% medium note
17% base note
it works wonderfully!

Dtdang

Member

October 8, 2018 at 1:10 pm in reply to: what can i mix to make the scent in lotion/cream last longer and smells well?

@perry, thanks a lot. Wow! it is complicated. I thought very simple as the theory.

Dtdang

Member

October 8, 2018 at 12:26 pm in reply to: what can i mix to make the scent in lotion/cream last longer and smells well?

@Belassi, thanks a lot. What is the supplier name ?
@dr Pratt, I do not have formula yet. Just trying to learn.
i read the article talking about scent pyramid: high notes, medium notes, base notes.
i mixed three of them, but the results are not good.

Dtdang

Member

October 5, 2018 at 2:09 am in reply to: Sanitizing containers…question

The airless pop up bottle is cleaned at manufacturing
i asked the sellers and they told me that airless bottles are ready to use

Dtdang

Member

October 3, 2018 at 1:07 pm in reply to: Why does perfume’s scent last so long?

Thanks Dr. Pratt. So the lavender scent from perfume and lotion are different chemical entities? Lavender scent from lotion is top note that is easy to evaporate . Other is bottom note that is not easy evaporate?
lavender scent from perfume is called fragrance?

Dtdang

Member

October 3, 2018 at 2:09 am in reply to: Any languages below violate the FDA rules on cosmetics a

thanks everyone helping me learning

Dtdang

Member

October 2, 2018 at 2:00 pm in reply to: Any languages below violate the FDA rules on cosmetics a

That is life!

I appreciate all who input to my topic.

Dtdang

Member

October 1, 2018 at 10:45 pm in reply to: Any languages below violate the FDA rules on cosmetics a

Thanks @Microformulation

Dtdang

Member

October 1, 2018 at 8:44 pm in reply to: Any languages below violate the FDA rules on cosmetics a

Thanks @Belassi

Dtdang

Member

September 29, 2018 at 3:53 pm in reply to: Petrolatum: Any plant derived or silicon based raws that can beat it at TEWL reduction wo clogging?

Searching on internet, I found the article related to TEWL :https://www.bioriginal.com/page-articles/%EF%BB%BFthe-effectiveness-of-gla-in-topical-formulations-for-the-skin/

Dtdang

Member

September 29, 2018 at 1:26 pm in reply to: Is Good Idea for using both Xanthan Gum and Carbomer for thickener??

@Microformulation thank you so much. Your advice is great.

Dtdang

Member

September 29, 2018 at 1:03 pm in reply to: Is Good Idea for using both Xanthan Gum and Carbomer for thickener??

@ngarayeva001 thank you so much. I love them and will try soon.

Dtdang

Member

September 29, 2018 at 1:54 am in reply to: Is Good Idea for using both Xanthan Gum and Carbomer for thickener??

@Microformulation, Great advice! Thanks a lot.
I will do that. I have no or very little experience on this area. Thanks for article again.

Dtdang

Member

September 29, 2018 at 12:22 am in reply to: Is Good Idea for using both Xanthan Gum and Carbomer for thickener??

I do not have formula yet. Reading the article that @Microformulation gave us. I thought it good to use both xanthan gum + carbomer (acrylic poly). Xanthan Gum works well with carbomer based on article.

Dtdang

Member

September 27, 2018 at 4:57 pm in reply to: What factors improve the lotion/cream stability?

THANK YOU EVERYONE!!
All of you make my day. I learn so much for all inputs. I really appreciate!!!!!!
The Stoke’s law is interested one. Then the article, then practical point of views are perfect pictures of emulsion processes.

Thank Perry for creating this forum.

Dtdang

Member

September 27, 2018 at 2:06 pm in reply to: What factors improve the lotion/cream stability?

@Christopher and @ngarayeva001 thanks you so much
I agree both of you.

Dtdang

Member

September 27, 2018 at 1:10 pm in reply to: What factors improve the lotion/cream stability?

I agreed that emulsion processes are trial and errors. Therefore, I create this topic in order to improve our knowledge
1) main emulsifier + co-emulsifier, thickener, anti-bacteria oil, preserve
2) mechanical processes: high speed stirring,
3) airless container

Dtdang

Member

September 27, 2018 at 1:00 pm in reply to: What factors improve the lotion/cream stability?

@Microformulation, @ngarayeva001thanks a lot.
The Stoke’s law that makes sense for research? Not practical?

Dtdang

Member

September 27, 2018 at 9:15 am in reply to: What factors improve the lotion/cream stability?

@ngarayeva001 thanks for answering. It is so complicated one. I agree with you to post it as separate one.

Dtdang

Member

September 27, 2018 at 8:46 am in reply to: Kokum butter vs. mango butter vs. Shea butter vs. cocoa butter

Shea Butter has higher % oleic than linoleic. It is not good for acne prone skin. It is good for dry skin

Dtdang

Member

September 27, 2018 at 8:39 am in reply to: What factors improve the lotion/cream stability?

Oh, thanks @ngarayeva001.
For the fading dark spot cream in the market, how long does it take to get rid of the dark spot?

Dtdang

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