Volume I · The Fremont seat
Sonal Sehgal
Hair by Sona · Fremont, California
The chemist behind the chair.
Sona came to hair from pharmaceutical science. Today, she brings that curiosity to colour and extensions in her private Fremont studio.

Meet Sona
A science background.
A personal touch.
We chose Sona for her colour work and the care of a private appointment. A California-licensed master stylist, she sees one client at a time.
- 5+ years
- Behind the chair
- One-to-one
- Every appointment
02 / Extensions
Find your fit.
Sona offers hand-tied wefts, tape-ins, keratin fusion and K-tip extensions. The choice starts with your own hair and the look you have in mind.
Hand-tied wefts
Wefts sewn onto a row of beads add fullness. Your natural hair needs enough density to cover the row.
- Best for
- Volume, thick hair
- Move-up
- Every 6–8 weeks
Keratin fusion & K-tip
Individual strands bonded to your hair allow flexible placement and room for updos.
- Best for
- Updos, flexibility
- Wear
- 3–4 months
Tape-ins
Flat wefts sandwich small sections of your hair. They need regular re-taping and can show in very fine hair.
- Best for
- Medium hair, first-timers
- Move-up
- Every 6–8 weeks
Your appointment
Tell her what
you’re imagining.
Call or text Sona with a little about your hair and the change you want. Pricing is by consultation.
Hair by Sona
43547 Mission BlvdFremont, CA 94539Get directions
- Studio
- Mission San Jose · One client at a time
- @hairbysona.extensions
- Website
- hairbysona.com
Best of 2025, Mission San Jose
on Google reviews, July 2025







