Three of the most-requested nail services, and the one you should book depends more on your natural nail than on trends. Gel polish is a colour coating. BIAB (Builder in a Bottle) adds strength without extending length. Acrylic extensions build length from scratch. Here's the honest comparison, including what it does to your nail bed.
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Compare
Low commitment
Gel Polish
Chip-free colour, no length added
£30 £55
45m, 1h
Healthy natural nails
Fortnightly colour changes
Low commitment
Rebook
Every 2 to 3 weeks
Lasts
2 to 3 weeks before lift
Medium commitment
BIAB / Builder Gel
Strength & subtle shape on your natural nail
£45 £75
1h, 1h 15m
Weak, peeling nails
Growing out length
Natural finish
Rebook
Every 3 to 4 weeks (infill)
Lasts
3 to 4 weeks; infilled, not removed
High commitment
Acrylic Extensions
Custom length and shape, sculpted or tipped
£55 £95
1h 30m, 2h
Special occasions
Dramatic length
Nail art
Rebook
Every 2 to 3 weeks (infill)
Lasts
6 to 8 weeks with regular infills
Side-by-side
Attribute
Gel Polish
BIAB / Builder Gel
Acrylic Extensions
Adds length
No
Minimal
Yes, any length
Strengthens nail
No
Yes, its main purpose
External strength only
Time in chair
45m, 1h
1h, 1h 15m
1h 30m, 2h
Price (UK avg)
£30 £55
£45 £75
£55 £95
Removal
Soak-off, 15m
Filed off, no soak
Filed off, 20 to 30m
Damage if removed correctly
Minimal
Very low, often improves nail health
Low, if lifted by a professional
Best for weak natural nails
No, can worsen peeling
Yes, first-choice
Not recommended long-term
Pick gel polish if…
Your natural nails are healthy and you just want colour that survives daily life. Book fortnightly and you'll spend the least of the three options over a year.
Pick BIAB if…
Your nails peel, split or won't grow past a certain length. BIAB acts like a flexible cast, nails grow underneath while the layer protects the tip. Most technicians rank it as the healthiest gel option available.
Pick acrylic extensions if…
You want length beyond what your natural nails can achieve, for a wedding, event, or a signature look. Commit to infills every 2 to 3 weeks; skipping them is what causes damage, not the acrylic itself.
Common questions
Does BIAB really strengthen my nails?
Yes, with a caveat. BIAB itself doesn't feed the nail, but by preventing the free edge from bending and breaking, it lets your nail grow to its full length. Most clients see visible improvement after two cycles.
How do I switch from acrylic to BIAB?
Book a 'Soak-off + BIAB' service. Your technician will remove the acrylic gently, assess the nail plate and apply BIAB the same visit. Most Cover Beauty nail salons offer this as one appointment.
Can I do these at home?
Gel polish, yes, with proper prep and a UV/LED lamp. BIAB and acrylic require training; poor application is the main cause of the 'gel damaged my nails' myth.
Ready to book?
Browse verified nails salons across the UK and book with a specialist who offers the option you picked.
