Hair grows back.
Activity "Threshold dose" for Albendazole is about 2 mg/kg.
Half life is about 2 - 4 hours.
Std dose is about 3 - 4 mg/kg, when Albendazole is the active antiparasitic, and it is not used as a co-factor or multiplier.
Max dose is about 8 - 10mg/kg/D. This is also a total in Day level.
Doses above Max dose can be done for short period of time, but eventually, like after a month of daily use, hair loss may or will occur.
Some are more sensitive to Albendazole.
Hair loss can also be a factor in Strongyloides infections.
The formula you are using, target infection, dictates the dosing schedule. Each infection is different.
Typical uses for Albendazole can be as a antiparasitic, penetration enhancer, Organ penitration, BBB gateway medication, or formula multiplication factor.
Dosing can vary from say every 6 months for a filarial infection, up to 4 times per day for the elimination of flatworm infections.
So the dosing depends on the "application" of the medication.
Seldom is it ever used at levels above 10mg/kg/D Day, because it has lost much of its usefulness as a mainstream antiparasitic.
Frequently it is used as a cofactor, in that it can make formulas, other meds, more effective.
When Albendazole is used as a co-factor (multiplier), typical maximum strength of say 4mg/kg/Dose, twice per day, results in a increase of a med like Pyrantel by about 2X (doubling of strength).
After extended use of Albendazole for months or years, hair may curl, it is called chemo hair, or the chemo curl. Kind of a permanent change for some areas of hair.