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Regulated Science Institute is exam prep for healthcare professionals: lessons, a question bank, audio, flashcards and a study plan for 238 exams across medicine, nursing, pharmacy, dentistry and allied health. Every question comes with TeachBack™, a step-by-step explanation of the reasoning, every wrong option and the exam trap.

238 exams, including USMLE, COMLEX, NCLEX, NAPLEX, BCPS, INBDE, PANCE and many more. Browse the full exam catalog.

Yes. Every exam has a free 20-question quiz with full TeachBack™ explanations and audio. No account or credit card needed.

Find your exam in the catalog, try its free quiz, then get the full prep when you're ready. Your course appears in your dashboard right after checkout.

Regulated Science Institute is not an accrediting body and is not affiliated with the organizations that run these exams. Courses are built against each exam's official content outline, and flagged items are reviewed by subject matter experts before learners see them.

TeachBack™ is the tutor built into every lesson and question. After each answer it walks you through the stem, the key clue, the trap, why each wrong option is wrong, and what to review next, with audio you can replay anywhere. See how it works.

• Lessons organized by the exam blueprint
• A question bank with a TeachBack™ explanation for every question
• Audio explanations you can listen to on the go
• Flashcards for quick review
• A study plan and progress analytics by topic

Content is built from trusted sources against each exam's outline, then checked for answer-key consistency, citation support, duplicates and item quality. Flagged items go to subject matter experts, and learner reports feed ongoing fixes.

Continuously. Reported issues are reviewed and fixed, and courses are revised when a certifying body publishes a new content outline.

Yes. Send us a message with the exam name and the question text, and we'll review it.

Each exam prep is a one-time payment of $150 for one full year of access (BCMTMS is $200). No subscription and no auto-renewal. See pricing.

One full year from the date of purchase. Study at your own pace during that time.

All major credit cards (Visa, Mastercard, American Express and Discover) through our secure payment processor.

Because Regulated Science Institute gives full digital access immediately at purchase, all sales are final and non-refundable. That's why every exam has a free quiz to try first. Full details are in our Terms of Use.

Your order confirmation email has it, and every order is listed under My account → Orders.

Yes. Schools, hospitals and employers get volume pricing, cohort readiness dashboards, SSO and LMS integration. See institutional plans.

Select Log in at the top of any page, then Register. You can sign up with your email or continue with Google.

Reset your password here and enter your email. The reset link expires after 24 hours. If it doesn't arrive, check your spam folder, then contact us.

Yes. Sign in on your computer, tablet or phone and your progress syncs automatically.

Email support@regulatedscience.org from the address on your account. We process deletion requests within 30 days, as described in our Privacy Policy.

Current versions of Chrome, Safari, Firefox and Edge on desktop and mobile.

Not yet. The website is built to work well on phones, so you can study in any mobile browser in the meantime.

Not currently. Regulated Science Institute needs an internet connection.

Refresh the page, then try a private window or a different browser, and turn off browser extensions such as ad blockers. If it still happens, send us a message with your device, browser and the page you were on.

Yes. All data is encrypted in transit (TLS), and we never sell your personal information. Details are in our Privacy Policy.