The CoLaz blog · page 11
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
Skin · 26 July 2025 · 8 min
Dermapen for Breast Rejuvenation: What Microneedling Can and Cannot Do
Microneedling will not lift the breast, but it can genuinely improve the quality of the skin on and around the chest. Here is the honest, evidence-based picture.
Skin · 23 July 2025 · 7 min
How often should you use a Dermapen? Safe timelines
A Dermapen is a professional microneedling pen, and the gap between sessions is what makes it safe. Here are realistic timelines by skin goal, plus the signs you should wait longer.
Wellness · 20 July 2025 · 7 min
Needle Size for a B12 Injection: A Simple Guide
Needle size is one of the most-searched B12 questions, and the answer depends on the injection method and your body. Here is the clinician's guide, from the CoLaz team.
Wellness · 14 July 2025 · 8 min
Injecting B12 into fat: the 4 body areas that work best
Injecting B12 into the fatty layer under the skin is a recognised route for vitamin B12. Here are the four body areas that work best, how it compares to an intramuscular shot, and why a trained clinician should give it.
Wellness · 12 July 2025 · 8 min
Can diabetics take B12 injections? What the evidence says
People with diabetes, especially long-term metformin users, are more likely to run low on vitamin B12. Here is when injections help, how they are dosed, and why a GP blood test comes first.
Wellness · 10 July 2025 · 6 min
How often can you get vitamin B12 injections?
How often you can have B12 injections depends on why you are deficient. Here is the NHS loading and maintenance schedule, and what changes it.
Wellness · 1 July 2025 · 7 min
How long does IV therapy take? A realistic timing guide
Most IV vitamin drips take 30 to 60 minutes once the line is in. Here is what decides the timing, what happens during the appointment, and how CoLaz keeps it safe.
Aesthetics · 18 June 2025 · 8 min
PRP and autoimmune conditions: 3 inflammation risks to weigh first
PRP uses your own blood to prompt healing, but autoimmune conditions change how your body responds. Here are the three inflammation risks to weigh and how CoLaz screens for them.
Aesthetics · 3 June 2025 · 8 min
How to Prepare Platelet-Rich Plasma Safely at Home: 6 Warnings
PRP is made from your own blood, but a home setup cannot draw, spin or inject it safely. Here are six warnings and the safer route through a clinic.
Aesthetics · 2 June 2025 · 8 min
PRP Side Effects: Common Reactions and Rare Risks Explained
PRP uses your own blood, so most side effects are mild and short-lived. Here are the common reactions, the rare risks that matter, and how a properly run clinic keeps them low.
Skin · 31 May 2025 · 7 min
What to Put on Your Face After Dermaplaning: 6 Products and 4 Don'ts
Dermaplaning leaves skin smoother but more exposed. Here are the six products to use afterwards, the four things to avoid, and how to protect your skin barrier.
Skin · 30 May 2025 · 7 min
Does your face go red after dermaplaning? Causes and how to calm it
A red or flushed face after dermaplaning is normal and short-lived. Here is why it happens, how long it lasts, and how to soothe your skin at home.
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