Forum Replies Created

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  • Dtdang

    Member
    September 5, 2018 at 1:48 pm in reply to: Kokum butter vs. mango butter vs. Shea butter vs. cocoa butter

    @ngarayeva001 thanks for sharing valuable and practical formulation. I love it.

  • Dtdang

    Member
    September 5, 2018 at 2:37 am in reply to: Kokum butter vs. mango butter vs. Shea butter vs. cocoa butter

    Thanks ngarayeva001 & Belassi
    I just made Cocoa for hands & Feet lotion. Its smell is good. But it has soaping effect. I heated it to 125F, and puth dimethicone fluid that I bought from Making Cosmetics. The soaping effect was not existing anymore. 

    I found the interest subject on the internet. It is called Grease-fall. More details, click on this   https://itsallinmyhands.com/2013/03/05/formulating-a-lotion-choosing-the-fats-theory-pt-5/

  • Dtdang

    Member
    August 27, 2018 at 2:59 pm in reply to: Grape seed oil & Rose hip oil

    Thanks Doreen,great advice. I will do that.

  • Dtdang

    Member
    August 27, 2018 at 3:02 am in reply to: How to choose herbal oils

    My discussion topic makes quite few do not like. Sorry!  

  • Dtdang

    Member
    August 27, 2018 at 2:55 am in reply to: How to choose herbal oils

    Natural ingredients such as rosehip oil, turmeric extract 
    the natural ingredients are extracted from herbsor botanicals, etc…..

    chemical ingredients are are from petroleum or made from labs (synthetic)

    thanks 

  • Dtdang

    Member
    August 26, 2018 at 9:12 pm in reply to: How to choose herbal oils

    Thanks Ngarayeva001. Wonderful idea! I just tried out chanel, la Mer moisturize cream. Their texture is nice!  
    I look at their ingredients and found that most of them are chemicals. Their cream has no expire date. Very expensive!

  • Dtdang

    Member
    August 25, 2018 at 4:13 pm in reply to: Grape seed oil & Rose hip oil

    Thanks Doreen. Your experience is so great and helpful for me to learn. 
    2% salicylic acid with 15% polyols. How do you control the pH? What is original pH & concentration of salicylic ? I still get trouble about pH. Please help. Thanks.

  • Dtdang

    Member
    August 24, 2018 at 11:08 pm in reply to: Grape seed oil & Rose hip oil

    Thanks Microformulation

  • Dtdang

    Member
    August 24, 2018 at 4:36 pm in reply to: Grape seed oil & Rose hip oil

    Thank DAS
    Do you know what sources we can trust? I am very new in this area. 

  • Dtdang

    Member
    August 23, 2018 at 9:42 pm in reply to: Grape seed oil & Rose hip oil

    Thanks ngarayeva001, Chemistrygirl & DAS.
    I agree with you about coconut oil that is not good for facial cream due to its comedogenic = 4. Thanks again. 
     
    DAS! If you google “coconut oil benefits for skin” you will see alot of information about it. Now, I understand that there are many marketing hypes. I must be careful about what I read on internet.

    So far, This FORUM helps me a lot! Thanks Perry.

  • Dtdang

    Member
    August 23, 2018 at 8:00 pm in reply to: Grape seed oil & Rose hip oil

    Thanks ngarayeva001. You are right. I like the coconut oil because of the followings: Anti-bacteria - keeping the natural high note scents for longer time - There are many articles telling many good benefits for coconut oil. Is it true?

  • Dtdang

    Member
    August 22, 2018 at 10:51 pm in reply to: CMV - Skin care customization is mostly just marketing hype

    I agree with Perry. It’s another marketing. 
     

  • Dtdang

    Member
    August 22, 2018 at 10:14 pm in reply to: Grape seed oil & Rose hip oil

    ngarayeva001! I plan to buy it from making cosmetics. It has detail documents. 
    Do you think coconut oil (5%) + rosehip oil (5%) and vit. E (.5%) that can improve the stability?

  • Dtdang

    Member
    August 22, 2018 at 5:55 pm in reply to: Need Cucumber Essential Oil

    Try makingcosmetics.com

  • Dtdang

    Member
    August 22, 2018 at 12:22 am in reply to: Grape seed oil & Rose hip oil

    Thanks Microformulation!

    it makes sense.

  • Dtdang

    Member
    August 21, 2018 at 9:03 pm in reply to: Grape seed oil & Rose hip oil

    Microfoemulation!
    with your professional experiences, the natural formulation and synthesis chemical formulation, which one is better in general?

  • Dtdang

    Member
    August 21, 2018 at 4:11 pm in reply to: Grape seed oil & Rose hip oil

    Thanks Food_processer. Do you use grape seed oil by itself or with the cream containing it?

  • Dtdang

    Member
    August 21, 2018 at 3:47 pm in reply to: Grape seed oil & Rose hip oil

    Thanks Perry and ngarayeva001

  • Dtdang

    Member
    August 21, 2018 at 1:24 pm in reply to: Grape seed oil & Rose hip oil

    Thanks ngarayeva001.
    can both used in formulating together to improve the efficiency?

  • Dtdang

    Member
    August 21, 2018 at 12:44 am in reply to: How to space out Retinoid and Exfoliant (AHA) use optimally?

    pKa of lactic acid is 3.86. So, pH = 3.86  will have 50% free lactic acid

  • Dtdang

    Member
    August 12, 2018 at 7:05 pm in reply to: Ingredients to remove dark spots and even skin tone

    Ngarayeva001!
    i agree with you and thank you.
    i plan to buy vitamin c 20% in silicone to make serum as described formula above

  • Dtdang

    Member
    August 12, 2018 at 4:39 pm in reply to: Ingredients to remove dark spots and even skin tone

    I just found formula from making cosmetic 
    vitamin c 92.7%
     vitamin e acetat 2%
    vitamin a 5%

    polygluco 0.3%

    no water formula 

    anyone has has experience on this formula?

    thanks in advance anyone share !

  • Dtdang

    Member
    August 12, 2018 at 3:59 pm in reply to: Ingredients to remove dark spots and even skin tone

    Wow, vitamin C is powerful ingredient for anti-aging. 
    Where are the resources containing vitamin C naturally such as lemon, orange?

    ascorbic acid is powerful but does it work well stable with others?

    I like natural products and believe naturals providing the best for skin care.

    is it good for silicon (rubber) staying on top of skin?

  • Dtdang

    Member
    August 11, 2018 at 2:38 pm in reply to: Ingredients to remove dark spots and even skin tone

    The pKa of l-ascorbic acid = 4
    why can we increase the ph to reduce irritation?

  • Dtdang

    Member
    August 11, 2018 at 2:29 pm in reply to: Whitening Cream too thick and not spreadable

    The pKa of Kojic acid is 7.6 
    when pH = 7.6 the free acid is 50%
    the most active of kojic acid and irritation is reduced.

    this is concept, I do not have experienced on kojic. 
    On glycolic acid, ph = 3.8 the irritation is less than ph= 3.4

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