It is done three to five times. Texture tidies up over two to four weeks, and added right after a strong treatment it speeds recovery. The ingredient signals to cells and that response takes time to show as a result, so the difference is clearer across sessions than from one.

It can be taken alone, but the change is small. This ingredient acts more strongly while damaged tissue is repairing, so with no stimulus at all there is little for it to respond to. Added right after laser or needle treatment it speeds healing, which is why they are often taken as a set.

Both work by applying an ingredient and helping it absorb. Exosomes use particles containing many growth factors and proteins, so the signals are varied; EGF care concentrates on one specific regenerative ingredient. For a clear single goal EGF care is used; for general recovery, exosomes.