I missed this question before.
Iím not sure if you are still looking for the answer to this question but I will respond just in case anyone else is interested.
Generally, the leafy sections, powders and flowers should be infused to get the most out of them. To make an infusion you need to place your herbs and flowers in an ovenproof container then pour boiling water over them. Immediately cover the container to prevent the loss of any of the essential oils in the steam. Leave your infusion to steep for a minimum of 15 minutes. Strain the herbs before you use the infusion.
To get the most out of the woody sections of plants (such as Burdock root and Marsh mallow root) it is best to use a decoction. For this you will need to place the herbs in a stainless steel saucepan and pour boiling water over them. Then cover the saucepan with a lid. Gently heat the herbs for a maximum of 15 minutes. Strain the herbs before you use the infusion.
The more herbs you use, the more powerful your infusion will be.
The oil extracts are definitely more potent than the herbs by themselves. Essentials oils are very powerful and they need to be diluted before use. I would recommend using the herbs instead of the oils because there is a greater risk of adverse reaction to the essential oils.
While these infusions will condition and nourish your hair and scalp, they will not relax your natural curl pattern.
I donít know anything about the Natural laxer. However, I highly doubt that it has the ability to naturally relax hair. Many of these natural relaxers that people talk about are just great deep conditioners.