If you are considering using a lash growth treatment, one of the first questions you will ask is:
What do the results actually look like?
The short answer is that all of our treatments produce gradual, natural improvements in lash length, thickness and darkness over 12 to 16 weeks.
Unlike cosmetic serums, these changes are driven by a biological effect on the hair follicle.
How a treatment can changes eyelashes
For the purpose of this article, we’ll focus on bimatoprost, which has one of the best understood impacts on growth. It is just one of the active ingredients that our team of doctors might suggest to combat lash growth concerns. Bimatoprost works by extending the anagen (growth) phase of the eyelash cycle.
This leads to:
- Longer lashes
- Increased density
- Darker pigmentation
Over time, more lashes remain in the growth phase at once — creating a fuller appearance.
Before and After Timeline
Most of our clients follow a consistent progression:
Weeks 0 to 4
- Subtle early changes begin to be seen
- There is a slight increase in lash density
Weeks 4 to 8
- Noticeable lengthening is coming through
- Some thickening, particularly at the base of the hairs
Weeks 8 to 12
- There is now a clear improvement in density
- The lashes are noticeably longer and appear darker than before
Weeks 16
- Full results should appear as all of the lashes will have been through a complete 16 week growth cycle
- Maximum length and fullness has been achieved
These timelines reflect both clinical studies and our own experience from helping clients since the founding of Mylash in 2007.
What Do “Before and After” Results Look Like?
Results are best described as:
- Natural, not artificial
- Gradual rather than immediate
- Noticeable but not exaggerated or fake looking
You will not suddenly develop dramatically different lashes overnight.
Instead, your existing lashes become:
- Longer than their natural baseline
- Thicker at the shaft
- More visible overall
Important: Results Vary
Not all patients achieve identical results, but almost all of our clients are happy with the results that they achieve. We still have clients from when we first began Mylash in 2007.
Outcomes depend on many factors that interact with each other.
There are some factors that you can control: how consistent and precise you are when applying the treatment, keeping stress levels low, and having a healthy, balanced diet are good examples.
Some factors are beyond your control. Some people have naturally finer hair so while their lashes will grow, they may not grow as long as others with naturally thicker hairs to begin with.
Patients with damaged lashes, from overplucking or long term eyelash extension use for example, often see the most noticeable improvement. Using after chemotherapy is another time when the results can be dramatic.
Eyebrow Before and After Results
Bimatoprost is increasingly used for eyebrow enhancement.
Typical results include:
- Filling in over-plucked areas
- Thickening fine (vellus) hairs
- Improving overall brow definition
This is particularly relevant for women experiencing thinning brows and why eyebrow treatments are becoming more common.
Why Results Take Time
Eyelashes grow slowly.
Each lash move through its own cycle, and not all follicles are active at the same time. This asynchronous pattern means that some people notice growth in one area before another, but after 3 or 4 months this equalises as all of the hairs finish a cycle.
This is why:
- Early results appear uneven
- Full results take up to 16 weeks
Consistency is essential.
What Happens If You Stop Using a Growth Treatment?
If a treatment is stopped:
- Lashes gradually return to baseline
- This typically occurs over 12 to 16 weeks
There is no evidence that any treatment permanently alters the follicle. There are some anecdotal reports that peoples lashes feel like they have been permanently enlarged but this has not been confirmed scientifically.
Safety and Expectations
For most users, results are achieved without significant issues.
However, it is important to understand:
- proper application technique
- realistic timelines
- potential side effects
Clinical Evidence Behind Results
The effectiveness of bimatoprost is supported by clinical trials reviewed by the U.S. Food and Drug Administration.
In these studies, treated eyelashes were:
- 106% thicker
- 25% longer
- 18% darker
You can review the FDA data here.
Why Choose a Medically Supervised Treatment?
At MyLash:
- Treatment is prescribed by UK doctors
- Patients are medically assessed
- Medication is dispensed by UK pharmacies
This ensures:
- authenticity
- safety
- appropriate use
The Key Takeaway
Treatment before and after results are:
- gradual
- natural
- clinically supported
The most important factor is not speed — but consistent use over time.
Considering Treatment?
If you would like to explore treatment, our doctors can assess your suitability confidentially.
Start your consultation today.
Founded in 2007, MyLash was the first UK services to make effective lash growth treatments available in Europe. Our team has helped tens of thousands of clients achieve longer, thicker lashes under medical supervision.
We have been featured in multiple UK magazines and newspapers, recognised for our scientific approach to lash and brow growth.
Why Choose MyLash?
- Doctor-prescribed treatment
- Home delivery anywhere in the UK
- Established since 2007, trusted by thousands
- Featured in major UK publications
- Scientifically led, developed by Dr Tom Walker and run by a team of UK doctors
Frequently asked questions
Most people see early changes within 4–8 weeks, with full results at 12–16 weeks.
No. Results are maintained only while using the treatment. Lashes return to baseline after stopping.
No. Results are typically natural-looking, enhancing your existing lashes rather than creating an artificial appearance.
Yes. Bimatoprost can improve eyebrow density, particularly in areas affected by over-plucking or thinning.
No. Results vary depending on baseline lashes, consistency and individual response.
