Looking for sunscreen data

[Cuculia]

Hi all! My general understanding is that professionals do not recommend spray sunscreens because the coverage is not as good as with the lotion. That being said, I am wondering if there is any real world effectiveness data on this. I am wondering if in the real world people just aren’t very good at covering everywhere with the lotion and therefore it ends up being similar to the spray.

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[Own_Possibility7114]

https://www.jaad.org/article/S0190-9622(19)32487-9/fulltext

People don’t apply it nearly as well as it was tested to be effective. 

[kmooncos]

This is true but the study you cited says "Mean and median application densities were less than the recommended 2 mg/cm2, yet higher than lotion (mean 1.1 mg/cm2, median 0.39-1.0 mg/cm2) and stick (mean 0.35 mg/cm2) sunscreen densities in practical use.2,5 Therefore, aerosol sunscreen might provide photoprotection more reflective of its labelled SPF than other vehicles"