The short answer
Change one thing at a time and give it twelve weeks. Skin cell turnover and hair growth are slow, and almost nothing shows a real result in a fortnight.
- Introduce one product at a time, and nothing else new alongside it.
- Take a photograph at the start, in the same light, at the same time of day.
- Give it twelve weeks for skin, and longer for anything to do with hair growth.
- Photograph again in the same conditions and compare, rather than relying on memory.
- Stop it and see. If nothing changes when you stop, it was not doing anything.
What will ruin it
Introducing a full new routine at once makes it impossible to tell what helped and impossible to identify what caused a reaction, which is the situation most people end up in.
Why it works
Skin renews over roughly a month, and visible change lags behind that. Any product showing a dramatic result in days is doing something temporary, usually hydration or light reflection.
Tipking is general household information, not professional advice. Test anything on a hidden patch first. Full disclaimer.