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As a newbie Formulator and micro business operator,am super excited about this tool.

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I’ve been using propylene glycol at 1% in creams and lotions for penetration enhancement purposes for 3 years now.

PS: am not a professional formulator but my research led that.

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Camel said:

@Abdullah - You might consider looking into sepi white if it is available to you. It is Undecylenoyl Phenylalanine. There is research that shows its efficacy in treating age spots and melasma at 2%. There is also a study by Procter & Gamble that found 1% Undecylenoyl Phenylalanine with 5% Niacinamide was more effective than niacinamide alone.

@AZIZ_KALUNGI256 - I agree with adding a chelating agent and a stronger preservation system. Look into Phenonip; it is a combination of phenoxyethanol and parabens that I was recently introduced to. You could probably use it at 0.5%. 

Why use sunflower oil when you are already using more effective emollients like mineral oil and dimethicone? You will probably need to add an antioxidant like tocopherol to prevent oxidation, I don’t believe I see one.

Thanks

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Abdullah said:

@Camel how does it compare to alpha arbutin 2%? 

I recently launched a 2% alpha arbutin at pH 5 serum for skin whitening and age spot. 

I am not using it myself as i don’t want to be white  but people who are using it haven’t noticed any effect of it since about a month or so use.

Maybe it takes more time to function or it is not effective at all. I don’t know. 

Sepi white is a brightener not a whitener. Concerning which one is more potent, I don’t know. I think it would be nice to pair the 2% Alpha arbutin with 0.1% sepi white, I will experiment it

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Abdullah said:

What are CSA, MPG and sepi white? 

I would say add chelating agent, reduce Propyl paraben and add a preservative for bacteria 

CSA is ceto Stearyl alcohol,  MPG is mono propylene glycol, sepi white is a brightening active

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Thank you Abdullah, any other comments on that formular?

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Yes i forgot mango butter 5%

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PhilGeis said:

As Pharma noted - sorbate/benzoate concetrations are too high  - drop each by 50% - and you don’t need both.  Suggest addition of phenoxyethanol.

In production, the water phase will grow microbes if you let it sit around.

Thanks.  I will try to source phenoxyethanol. 
Its rather scarce over here though

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@Pharma 
Thank you for your advise.
What percentage of glycerine is maximum as per this formular