Med spa reviews: the star rating thresholds clients use to book

Clients do not read your average. They filter by it. Here is where the cut-offs fall and why.

Why do med spa reviews work as a threshold and not an average?

Think of a rating as a filter and not a grade. A client searching for Botox or laser treatment sees a list of providers. Many apply a minimum rating or simply skip anything that looks weak. The decision happens before any review is read.

This is why a med spa can improve for months and see no booking change. If the score is still under the line, the better reviews are never seen. Then the score crosses the line and demand moves all at once. It is a step, not a slope.

Where do the cut-offs fall?

Here is what the evidence supports, with the limits stated.

• About 4.0 is the main gate. In the 2026 BrightLocal survey of 1,002 US adults, 68% required at least four stars. Another 10% said five stars.
• 4.5 is the second gate, and it is growing. The same survey found that 31% will only use a business rated 4.5 or higher, up from 17% the year before. Expect a med spa at 4.3 to lose some of those shoppers.
• Perfect is not the goal. The Medill Spiegel Research Center found purchase likelihood typically peaks between 4.0 and 4.7 stars and falls toward 5.0. A flawless score reads as filtered.
• Volume sets how much one review can move you. The same research found that the first handful of reviews do most of the work. Past that, extra reviews add stability and not persuasion.

These are survey and cross-industry figures. No study covers med spas alone, and local markets differ. Check the filter in your own city by searching as a client would.

How can a half star change demand?

Rounding creates cliffs. In the data Michael Luca studied, Yelp displayed an average rounded to the nearest half star. He is at Harvard Business School, and he used that fact to isolate the effect. In his study of Washington State restaurants, a one-star increase in rating led to a 5 to 9 percent increase in revenue for independent businesses. Chain restaurants showed no such effect.

The lesson is not about restaurants. It is that a rating of 3.24 and 3.25 are almost identical in quality, yet one displays as three stars and the other as three and a half. Customers react to what is shown, not to what is true underneath.

The same holds for a med spa. An average of 3.97 may display as 4.0 on one site and be filtered out on another. A single review can be the difference.

Why do thresholds move over time?

The 2026 BrightLocal figures show a shift. The share of consumers who would only use a business rated 4.5 or higher rose from 17% to 31% in one year. The share requiring four stars rose from 55% to 68%.

Why would standards climb? One plausible reason is supply. As more businesses collect reviews, the average rating of those that compete for attention rises. A buyer who sees many 4.7s begins to read a 4.2 as weak. The bar rises because the field does. This is an interpretation, not something the survey tested.

For a med spa, the implication is that a rating which was safe two years ago may be borderline today. Do not benchmark against what worked before. Benchmark against the providers a client sees on the same screen.

It also explains why the work does not end. A med spa that reaches 4.5 and stops collecting reviews will find the number drifting as older reviews age and newer ones from competitors arrive. Recency and volume keep the position. A steady, honest request to every client does more than a single push.

There is a practical way to use this. Write down the three med spas a client in your area is most likely to compare you with. Note each rating and how many reviews sit behind it. Then ask a plain question: on this screen, would I choose us? If the answer is no, the first job is to find out which reviews, old or new, are holding the number down. That may be a handful of reviews that do not describe a real visit, or it may be a pattern the team can fix. Either way, you now know the size of the gap.

What should a med spa do about it?

Find your current position first. Then work out how many points of movement you need.

• Calculate the gap. If you are at 4.2 and want 4.5, work out how many new five-star reviews it takes. The answer is often larger than expected.
• Look for reviews that do not belong. Some come from people who were never clients, from competitors, or from another business with a similar name. Removing even a few can close the gap faster than new reviews can. Most reviews come down within 24 to 48 hours, and some take a little longer.
• Ask every client. Do not screen. Ask everyone at the end of a visit so the mix reflects reality.
• Reply to the rest. BrightLocal found 80% of consumers say they are more likely to use a business that responds to all of its reviews. See how to respond to a negative Google review.

For a wider look at volume, read how many reviews a practice needs.

For a service built around this field, see Reputation management for med spas.