When retouching beauty pictures, the more delicate details matter. Skin retouching is usually the main focus throughout post-production, thought of one among the foremost vital aspects of quality retouching. However, the distinction between amateur retouching and genuinely skilled work are details that typically get overlooked: hair. Whether or not it's eyelashes, eyebrows, or facial hair, in a real beauty image, these will create all the distinction.
So, you are using visual aid layers for your retouching? Good, you seem to already have a fundamental knowledge and know about common high-end retouching techniques. BUT, If you use the channel mixer adjustment layer as a visual aid for your dodging and burning, you might find this interesting as I explain why you should not be using it like you were told!