The CoLaz blog · page 4
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
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.
Wellness · 12 May 2026 · 6 min
IV therapy side effects: what to expect
IV vitamin therapy is generally well tolerated, but it has side effects worth knowing. Here are the common and rare reactions, who should be cautious, and how to stay safe.
Skin · 11 May 2026 · 5 min
Hydrafacial side effects: what to expect
A Hydrafacial is gentle, but it can cause brief redness, dryness or a short breakout. Here is what is normal, who should take care, and how to look after your skin after.
Body · 10 May 2026 · 6 min
Lemon Bottle for arm fat: does it work?
Lemon Bottle fat-dissolving injections can help with stubborn upper-arm fat in the right candidate. Here is how it works, the typical course, and the limits.
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