Replacement with 1% BS can be made while adjusting the water percentage.

Hello Adriana, In principle yes, you can replace water with colloidal gold in pure water. Good luck!

And Cosgard with BS?

Hello! Can you replace water with colloidal gold in pure water?

Hello, For easier and more accurate measurements, we recommend using our precision scales, which measure from 0.04 grams and help you accurately measure the ingredients in your recipes.

We have seen that all the ingredients of the recipe are expressed in grams.But they are mostly liquids.In order to make the correct dosage, using a syringe, in ml you will have to convert grams to ml, according to the formula in physics: milli grams = milli liters *density. In this case, e.g., in Peptide-coll, where the density is 1.15-1.22, according to the chart, it follows that 0.3 g ~ 0.24-0.26 ml. Is this correct? And one more thing, how do you dose the quantity in grams for a liquid product? Thank you PS: I have been preparing my creams for over 10 years, starting from the ideas on your site.You are wonderful and, whenever I have the opportunity, I recommend you with pleasure

Thanks a lot for your reply!

Hello Daisy, Although the two ingredients behave differently, substitution is possible. We recommend 0.5 - 0.6% HMW instead of xanthan gum. Pre-mix the HMW HA with the glycerin before adding the other ingredients. The final pH of the serum does not allow the addition of water-soluble vitamin C.

Hello, Couldn't you replace Xanthan with HMW? Could the formula also support water-soluble vitamin c? Thank you.You are terrific!

Hi Laura, Basically you can remove the sodium lactate from this recipe. Have a sunny day!

Hello, with what could I replace sodium lactate? Thanks!

Hello Cornelia, It's fine. We recommend you to measure the final pH.

Hello! I put Softdermo 2,5%, added it in the water and then put the other ingredients. Did I do it correctly?

Thank you so much for your reply! Zi faina sa aveti :)

Hello Cornelia, The only ingredient that can be irritating in this recipe is the preservative Cosgard. We recommend you to replace it with Softdermo Eco. best wishes!

Hello! Me again :) I've been using this serum for a week, morning and evening, but for a couple of days now I've had itching on my face and neck. Which of the ingredients can be irritating for dry and sensitive skin? If Cosgard is the only irritant, could I replace it with something else?

Hello Cornelia, This serum does not require refrigeration.

Hello! Should this serum be kept in the refrigerator? ?

Hello! Add niacinamide before the xanthan gum. The serum can also be used in the eye area.

Hello! You can use the serum quietly, a higher dosage of city-guard does not harm the skin in any way.