Project Summary Our mixed-methods implementation hybrid (type I) pilot RCT will develop a self-administered PrEP Decisional Aid for dissemination with Self-administered HIV test kits (DASH), and pilot it with 120 users of the Together Take Me Home (TTMH) National free HIVST kit distribution program to characterize the potential impact of the DASH on increasing PrEP awareness, accurate PrEP knowledge, and PrEP starts, with 30 qualitative in-depth interviews to expand understanding, and characterization of meta-data for users of the DASH to advise refinements in the decision aid tool. Our team, in collaboration with our expert advisory committee and community review panel of TTMH HIV self-test users, will work with Radiant Technologies to develop the decisional aid with up-to-date content on PrEP choices, values clarification exercises to promote decisional clarity in considering PrEP, and active links to local and remote (online) PrEP prescribing resources. Among individuals requesting a HIVST through TTMH (ages 17-30 per TTMH protocol), we will recruit HIVST requesters and randomly assign individuals to the DASH or standard condition (1:1), collecting baseline, 1- and 3-month survey data. DASH participants receive a unique, time-sensitive link to the mobile friendly decision aid website, and reminders to use the link prior to expiration (2 weeks from baseline). Standard condition arm participants receive the standard HIVST kit and information about PrEP on the TTMH HIVST request website. All participants with negative HIV- test results continue in the study for month 1 and 3 surveys. PrEP starts at 3-months will be characterized between arms. Changes in accurate PrEP information and intentions to use PrEP from baseline to 1- and 3-month follow-up will be compared between study arms using longitudinal growth modeling; feasibility/acceptability of the program (DASH or standard KIT contents) will be assessed using mixed methods with survey data and 30 qualitative inter