Round Lab brand trust
Many reviewers say they already love other Round Lab products (e.g., the Birch line) and bought this gel because previous purchases from the brand worked well for their skin.
Need for a lightweight summer moisturizer
A large share of buyers specifically sought a non-greasy, gel-based moisturizer for hot/humid weather or oily-combination skin, choosing this over heavier creams.
Aloe vera gel alternative
Several reviewers explicitly bought it to replace traditional aloe vera gel, expecting similar soothing benefits with a nicer, less sticky texture.
Post-sun/after-care use case
Reviewers purchased it in anticipation of sunburn, tanning, or heat exposure, often mentioning plans to use it as an after-sun cooling treatment.
Sample or beauty-box trial leading to full-size purchase
Multiple reviews mention receiving a sample or the product in a monthly beauty box (e.g., 'July box') and then buying the full-size version after liking it.