Short answer: it depends on how intense the shedding is and, above all, on the condition of the natural base. Increased seasonal shedding can occur between late summer and autumn, but extensions should not be used to conceal significant hair loss before understanding what is causing it.
Shedding or breakage?
They can look like the same thing in the mirror, but they are not.
Shedding involves the hair coming away from the root. Breakage, on the other hand, affects the hair shaft and can be encouraged by dryness, lightening, heat, sea water or mechanical stress.
After summer, the two situations can also overlap, creating the impression that you suddenly have much less hair.
When can extensions be considered?
If density is stable, the scalp is in good condition and the natural base can safely support the system, a professional can assess a carefully calibrated application to add volume or length.
On finer hair, it becomes even more important to control the weight, section size and distribution of the attachments. There is no benefit in packing extensions into an area where nature has left little room simply because they technically fit.
When is it better not to cover up the problem?
If the shedding is sudden, very intense, concentrated in specific areas, or accompanied by irritation or changes to the scalp, the first step should not be a cosmetic application.
In these cases, it is more appropriate to have the cause assessed by a doctor or dermatologist before adding a permanent system.
Extensions can change how the hair looks. They are not a treatment for hair loss.
What if you only need more volume?
When the concern is mainly aesthetic and concentrated around the top of the head, it can be useful to consider systems other than traditional extensions. In the Journal, we explain the difference between a topper and a wig.
The choice remains individual: what should be invisible is not only the attachment, but also the effort required to achieve the result.
In short
There is no blanket rule against extensions in September. There is, however, a smarter rule: first understand what is happening to the hair, then decide what to add.
A well-designed application enhances a suitable natural base. It should never be used to ignore a problem with the base itself.