How long Hims takes to work depends entirely on which treatment you’re using. Erectile dysfunction medications can work in under 30 minutes, while hair loss treatments need three to six months before you’ll notice a difference. Here’s a realistic timeline for each of the main Hims product categories so you know what to expect.
Erectile Dysfunction Medications
ED treatments are the fastest-acting products Hims offers. Sildenafil (the active ingredient in Viagra) can produce results in as little as 14 minutes for some men, though 30 minutes is a more reliable window. Plan to take it roughly 30 to 60 minutes before sex for the best results, and expect the effects to last four to six hours.
Tadalafil (the active ingredient in Cialis) has a similar onset. About a third of men in clinical studies responded within 16 minutes of taking 20 mg, though most should allow at least 30 minutes. The major difference is duration: tadalafil lasts up to 36 hours, which is why it’s sometimes called the “weekend pill.”
Hims also offers a daily low-dose tadalafil option (typically 5 mg). Because you take it every day, the drug stays in your system continuously and you don’t need to time it around sex. Studies show that men on daily tadalafil experienced improved performance as early as day two of starting the medication. The tradeoff is that the per-dose effect is more subtle than an as-needed pill, but many men prefer the spontaneity.
Hair Loss Treatments
Hair regrowth is a slow process, and this is where most people underestimate the timeline. Hims prescribes finasteride (oral or topical), minoxidil, or a combination of both. Regardless of the format, the timeline is governed by your hair growth cycle, so combining treatments won’t speed things up.
During the first few weeks of minoxidil, you may actually notice increased shedding. This is a well-documented phase where weaker hairs fall out to make room for stronger growth. It typically lasts about four to six weeks and then stops. If you’re not expecting it, the shedding can feel alarming, but it’s a sign the treatment is working.
Visible improvements in hair density generally appear between three and six months of consistent daily use. Full results, meaning the peak benefit you’re going to get from the medication, take about 9 to 12 months. Finasteride in particular hits its optimal efficacy around the one-year mark. This means you need to commit to at least six months before you can fairly judge whether the treatment is helping.
Skincare and Acne Treatments
Hims skincare products for acne and anti-aging often contain tretinoin, a prescription-strength retinoid. Tretinoin has a notoriously frustrating break-in period. During the first two to six weeks, your skin may actually get worse in a process called purging. Tretinoin accelerates skin cell turnover, which pushes clogged pores to the surface faster than they would on their own.
The purging phase typically peaks around weeks four to eight. After that, most people start seeing genuine improvement between weeks 6 and 12, with smoother, clearer skin becoming noticeable by the three-month mark. If your skin is still breaking out significantly after 12 weeks, that’s a reasonable point to reassess with your provider.
Mental Health Medications
Hims prescribes SSRIs like sertraline for anxiety and depression. These medications work by gradually shifting your brain chemistry, so the timeline is measured in weeks, not days. You may notice subtle initial effects within the first one to two weeks, things like slightly improved sleep or a small reduction in the intensity of anxious thoughts.
The full therapeutic effect for depression typically takes four to six weeks of consistent daily use. For conditions like OCD or PTSD, the timeline can stretch to 12 weeks before you reach the medication’s full benefit. This is one of the most common reasons people stop treatment too early: they don’t feel different after two weeks and assume the medication isn’t working. Give it the full six-week window before drawing conclusions.
Premature Ejaculation
SSRIs like sertraline are also prescribed off-label for premature ejaculation, and here the timeline is faster than it is for mood disorders. Clinical research shows that improved ejaculatory control typically occurs within one to two weeks of starting treatment. This faster response happens because the relevant effect (blocking serotonin reuptake) influences ejaculatory timing more directly than it influences mood regulation.
Weight Loss Programs
Hims offers GLP-1 based weight loss programs. These medications work by mimicking a hormone that reduces appetite and slows digestion, but they require a gradual dose escalation over several months. You start at a low dose to minimize side effects like nausea, then increase incrementally.
This ramp-up period is where patience matters most. Many people feel frustrated because it takes several months to reach a therapeutic dose and see meaningful weight loss. A useful benchmark from obesity medicine specialists: if you lose more than 5% of your body weight in the first three to four months, you’re on a strong trajectory and more likely to maintain that loss at the 12-month mark. Appetite suppression may begin earlier, but visible changes on the scale often take two to three months to become consistent.
Why Timelines Vary Between People
These timelines are averages, and individual responses depend on several factors. Body weight affects how quickly oral medications reach effective levels in your bloodstream. Whether you take ED pills on a full stomach (especially a high-fat meal) can delay onset by 30 minutes or more. Genetics influence how you metabolize finasteride and how your hair follicles respond. Skin type and existing acne severity change how dramatic the tretinoin purge phase feels.
The most important variable across all Hims treatments is consistency. Hair loss drugs, skincare, SSRIs, and weight loss medications all require daily use over weeks or months to deliver results. Missing doses resets the clock. If you’ve been consistent for the full recommended timeline and aren’t seeing results, that’s when it makes sense to revisit your treatment plan.