Strict rules north of the border were still in force making face coverings in hair salons mandatory. They will finally be relaxed today.
If found to have broken the law, Miss Sturgeon would face a £60 fixed penalty notice.
She has repeatedly called on Boris Johnson to resign following his fine for breaching lockdown rules.
The SNP claimed Miss Sturgeon was without her tartan mask only momentarily.
Now you see it: Nicola Sturgeon seen wearing a mask in the barber shop in East Kilbride, South Lanarkshire, on Saturday. The legal requirement to wear a face mask in indoor settings in Scotland moves into guidance on Monday
Now you don’t! Ms Sturgeon without the covering as she poses for a picture with another customer