[Dtdang]

@Devesh327, Thank you so much!

[Dtdang]

@grapefruit22, Thank you so much!

[Dtdang]

@chemicalmatt, the ascorbic acids 2-glucose is only efficacy in pH between 4.5 and 7

[Dtdang]

@Paprik, How are you? I have question:
When I put hyaluronic acid 0.15% M(1.3 MDa) and 0.15% Hyaluronic acid xs (35 KDa, very small), and water to 85%, mix them gently, It become gel.
I add 4% AHA acid, pH=4.7. Mix them together, The previous gel is disappear and just liquid. 
Question 1: What happen? AHA react to hyaluronic acids?
Question 2: incredient that has less than 500 Da molecular weight can be absorbed to skin. Hyaluronic acids have molecular weight > 500 Da. Therefore they can not be absorbed to skin?

Thank you so much and have good weekend.

[Dtdang]

@Syl Thanks

[Dtdang]

Thanks

[Dtdang]

Oh, my sale rep sent me the sample.  It is from vantage 

[Dtdang]

@Gordof & @Perry! Thank you so much!

[Dtdang]

Happy birthday ???????? 

[Dtdang]

@tecnico3vinia!
would you please look at my ingredients above? Tell me what wrong ?
 Thanks in advance 

[Dtdang]

@Pattsi! Thanks a lot.

[Dtdang]

@EVchem! Thank you. I will try.

[Dtdang]

@WarrenChemist! Thank you.

[Dtdang]

@WarrenChemist I used Hotact from Vantage for emulsified sugar scrubs. But, I failed to provide the warming effect. I also tried Coolact, I also faied to provide the cooling effect. I contacted Vantage through email. There was no reply. I put hotact during the cooling phase.
The ingredients: 

Shea Butter
Olive Oil
Grapeseed Oil
Castor Oil
Emulsified Wax
Stearic acid
Cooling down Germall Plus
Rosemary Oleoresin
HotAct
Sugar Thank you so much in advance

[Dtdang]

@Paprik! Thank you so much!
The result is excellent after I used 0.3% hyaluronic Medium. The peeling cream is thickener and no irritation without XG. I believe that hyaluronic M reduces the irritation from AHAs acids.

[Dtdang]

@ngarayeva001!
Thank you so much! I will do it.

[Dtdang]

@ngarayeva001! Thank you so much for wonderful tips. 
I will order one of them.

[Dtdang]

@ggpetrov! Thank you so much!
How do you cool down the emulsion slowly? 

[Dtdang]

@Paprik!
You are Great Formulator! Thank you so much. 

[Dtdang]

@ggpetrov, Would you please show me how to soluble 1% allantoin into water?
I  have difficulty to soluble 0.5% allantoin into water. I have to warm up the water little bit to soluble 0.5% allantoin. But, later solid allantoin appeared when the temperature going down.
Thanks in advance.

[Dtdang]

@Paprik, not 2% hyaluronic. But, 0.2% hyaluronic. It is typo.

[Dtdang]

@Paprik! Good morning.
I have question: I soluble Hyaluronic acid into the pure water. Then, put (water + Hyaluronic) into the refrigerator for cooling. It takes up to 2 hours for all (2%) hyaluronic acid to soluble into water. 
Do you have better way to soluble hyaluronic?

Then, I run into another problem that other powder ingredients are difficult to soluble into the cool water.

Thank you so much,

[Dtdang]

@Paprik thank you so much! You are great scientist & formulator!

[Dtdang]

The very small molecular 35 - 59 kDa 
the small molecular 200 - 400 kDa

[Dtdang]

@Paprik thank you so much. Peeling cream is so so thin. I also included hyaluronic acid with very small molecular and magnesium ascorbyl phosphate and 2% ahas.
For my learning, would you explain the reasons carbomer being useless and xg is ok.

how high molecular hyaluronic acid? I have very small and small