The CoLaz blog · page 5
Honest writing on aesthetic treatments,
from the clinicians who deliver them.
Practical guides to laser, skin, body, injectables and wellness, what treatments actually do, what they cost in real terms, what to expect from a session, and how to tell if a clinic is being straight with you.
All articles
Hair removal · 27 May 2026 · 8 min
Why does my chin hair keep coming back after waxing?
Waxing removes hair from the surface but leaves the follicle alive, and the chin is the area most likely to be driven by hormones. Here is what is really going on, and what works long-term.
Hair loss · 27 May 2026 · 8 min
Why is my hair thinning? Causes and the treatments that actually help
Hair thinning has more than one cause, and the right treatment depends on which cause is yours. Here is how the main types differ and the UK treatments that work for each.
Wellness · 22 May 2026 · 6 min
Why do I feel worse after my B12 injection?
Most people feel a lift after a B12 shot, but a minority feel briefly worse. Here are the genuine clinical reasons, what is normal, and the warning signs that mean you should see a doctor.
Wellness · 21 May 2026 · 6 min
What happens if you inject B12 wrong?
From injecting into fat instead of muscle to reusing needles, here is what can go wrong with poor B12 injection technique, and why it is safer in trained hands.
Wellness · 20 May 2026 · 5 min
Do B12 injections need to be refrigerated?
Whether B12 needs the fridge depends on the formulation. Here is the difference between hydroxocobalamin and cyanocobalamin storage, and how clinics keep it safe.
Wellness · 19 May 2026 · 6 min
How long do B12 injections last?
How long a B12 injection lasts depends on why you are deficient, how well you absorb it, and your dose. Here is the typical schedule and what shortens or extends it.
Skin · 18 May 2026 · 6 min
Skin tag on the nipple: causes, signs and removal
Skin tags on or near the nipple are benign and common. Here is what causes them, how to recognise one, the signs that need a doctor, and how they are safely removed.
Skin · 17 May 2026 · 5 min
Skin treatments to avoid during ringworm
Ringworm is a fungal infection, and the wrong products or treatments can spread it or slow healing. Here is what to avoid, what helps, and when to wait.
Hair removal · 16 May 2026 · 6 min
Why is my armpit or arm hair not growing?
If your armpit or arm hair has slowed or stopped, it is most often genetics or the natural hair cycle, but hormones and health matter too. Here is what is going on.
Body · 15 May 2026 · 6 min
Who should avoid Lemon Bottle injections?
Lemon Bottle fat-dissolving injections suit many people, but not all. Here are the groups who should avoid them and the health factors a clinic checks first.
Hair removal · 14 May 2026 · 6 min
How many electrolysis sessions for chin hair?
Chin hair usually takes about 8 to 12 electrolysis sessions to clear, with closer appointments early on. Here is what changes that number and why.
Body · 13 May 2026 · 6 min
Lemon Bottle side effects and recovery
What to expect after Lemon Bottle fat-dissolving injections: the normal short-lived side effects, the recovery timeline, aftercare, and the warning signs to act on.
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