Holinic

Hi there! ? Our courses are delivered in English and it is recommended to have a basic understanding of the language in order to comprehend the lesson mate...

Yes! If you can't use lemon juice (aka citric acid) to lower the pH of your shampoo, we recommend replacing it with apple cider vinegar. Make sure to rea...

There is the water extract or the essential oil that is commonly used. Rosemary oil is the one people generally refer to when it comes to haircare as it has ...

Yes, you can add Glycerin to your shampoo to boost its moisturizing effect. You can add 2-3% concentration for a light moisturizing effect and up to 5% conce...

For homemade recipes, strand pH is lower than scalp pH. So for a product touching the scalp, you should aim for 4.5 to 5.5 like for the homemade shampoo, and...

Instead of using 100g of dried flowers for 500ml of water, you can use 20-30g of chamomile powder.

So not all the ingredients that contain the word 'sodium' in their name are the same. Some are salts like 'sodium chloride' or a strong surfa...

In general, Infrared and Red light can help with hair loss but its efficiency will really depend on the real root cause of the hair loss AND the quality of t...

This is likely because the shampoo is well suited for your scalp but there is an ingredient in the recipe that your strands doesn't like. The best way to...

A: That’s a really good question and managing our deficiencies does require some soft touch. What is most important to consider when you supplement is that t...