679 094 530 · 924 254 639
Account
Moisturising facial gel with Siligel
Beginner
Serums

Moisturising facial gel with Siligel

Simple aqueous gel in which Siligel creates the main texture and helps give a fresh, stable feel.

Save to favourites

About this recipe. A starting moisturising facial gel for evaluating Siligel as the main gelling agent in a light aqueous formula. The recipe aims for a fresh texture that spreads easily and has good initial stability, without turning it into a cream or loading it with a fatty phase.

Why these ingredients are used.

  • Siligel is the main ingredient: it provides structure, viscosity and a more elegant feel than an overly runny aqueous gel.
  • Glycerine and propanediol act as humectants and help give a more comfortable feeling of hydration.
  • D-Panthenol W75 is incorporated for cosmetic comfort support at a normal formulation usage level.
  • Geogard 221 / Cosgard preserves the aqueous phase, provided that the final formula is within its pH range.
  • The citric acid solution is used only for adjustment, drop by drop, to the final pH.

Stability, viscosity the following day, preservation, pH, container compatibility and tolerance must be validated before regular use or marketing.

Base formula

Include Product % Quantity Price / pack size
Humectants and dispersion
Distilled or deionised water
88 % 88 g Manual addition
Liquid vegetable glycerine
4 % 4 g €0.09 used (1 x 125 g · purchase €2.90) Approx. leftover 121 g
Propanediol Ecocert
4 % 4 g €0.44 used (1 x 50 ml · purchase €5.50) Approx. leftover 46 ml
Gelling with Siligel
Siligel - Natural gelling agent
1.2 % 1.2 g €0.68 used (1 x 10 g · purchase €5.65) Approx. leftover 8.8 g
Active ingredients, preservation and pH
D-Panthenol W75
2 % 2 g €0.36 used (1 x 25 g · purchase €4.45) Approx. leftover 23 g
Geogard 221 / Cosgard
0.8 % 0.8 g €0.16 used (1 x 10 ml · purchase €2.05) Approx. leftover 9.2 ml
20% citric acid solution
0 % 0 c.n. Manual addition

Step by step

Prepare and disinfect 1 Room temperature

Prepare and disinfect

Before weighing anything, clean and disinfect the worktop, utensils, stirring rod or mixer and final container. In an aqueous formula, the main enemy is usually contamination rather than technique.

Mix the humectants 2 Room temperature

Mix the humectants

Weigh the water in a clean beaker. Add the glycerine and propanediol, and mix until there are no denser areas or unincorporated streaks. This mixture helps the final gel feel better on the skin.

Take your time dispersing Siligel 3 Room temperature

Take your time dispersing Siligel

Sprinkle the Siligel gradually over the aqueous phase while mixing. Do not pour it all in at once, as it may form lumps that are dry on the outside and wet on the inside.

Allow time for hydration 4 Room temperature

Allow time for hydration

Keep mixing until the gel starts to develop body. If you have a stirrer, use constant agitation. If mixing by hand, alternate circular movements with short pauses so that the powder hydrates thoroughly.

Incorporate the panthenol and preservative 5 Room temperature

Incorporate the panthenol and preservative

Once the gel is uniform, add the D-Panthenol W75 and mix until incorporated. Then add the Geogard 221 / Cosgard and mix slowly again, avoiding introducing too much air.

Check and adjust the pH 6 Room temperature

Check and adjust the pH

Measure the pH. If it is above the target range, add a 20% citric acid solution drop by drop, mix and measure again. Do not adjust by eye: one drop can make a big difference in 100 g.

Rest and assess the texture 7 Room temperature

Rest and assess the texture

Leave the gel to rest for 24 hours before judging its final viscosity. Siligel may finish developing body the next day, so do not adjust the texture too soon.

Package and use cautiously Final Room temperature

Package and use cautiously

Package in a clean container, preferably an airless container or one with a dispenser. Apply a small amount to clean skin. If this is an initial test, make a small quantity and observe the smell, colour, texture and tolerance over several days.

Preservation, shelf life and validation

  • Indicative formula. It does not replace a safety assessment or stability testing.
  • Disinfect the utensils, worktop and container before starting.
  • Always measure the final pH. If you cannot measure the pH, do not consider the formula finished.

Questions, improvements and possible corrections

If you have a question about this recipe, notice a possible error or would like to suggest an improvement, please let us know here.

We review messages before publishing them. Please do not include personal data or medical questions; if the answer could help others, we will publish it as an answered question.