Takeaways

Skincare can be condensed into talking points about a finite number of ingredients.
Skincare Videos are repetitive and based on these talking points.
Sponsorship videos are too good to pass on. Hence skincare videos are not necessarily trustworthy.
There is no definite way to determine if a product works without extensive A/B testing.
Top brands are safe to recommend because, at the very least, their products have been tested for safety.
Skincare product managers tend to oversupply free products to dermatologists, who give them to their patients. A feedback loop ensues if the patient likes the product and the dermatologist keeps recommending the product.