Understanding the Difference Between Povidone Iodine 5% and 10%: A Guide to Effective Wound Care with Aingo Pharma’s GPOV
When a patient arrives with a fresh cut, burn, diabetic ulcer, or a newly stitched wound, most clinicians instinctively choose Aingo Pharma’s GPOV – the 5% Povidone-Iodine Ointment. Yet pharmacies still stock plenty of 10% povidone-iodine formulations.
So what’s the truth behind these two strengths? Does 10% automatically mean “more powerful”? Or is there solid scientific evidence explaining why healthcare professionals in clinics, homes, nursing facilities, and even ICUs consistently prefer the 5% formulation as their trusted topical antiseptic?
Section 1: Understanding Povidone-Iodine – The Gold Standard Antiseptic for 60+ Years
Povidone-Iodine (PVP-I) was invented in the 1950s in the USA and quickly replaced painful tincture iodine and mercurochrome.
It works by slowly releasing free iodine that destroys bacterial cell walls, viral envelopes, fungal spores and even protozoa — all within minutes, yet remains non-resistant even after decades of use.
Aingo Pharma manufactures GPOV in WHO-GMP & ISO-certified plants using the exact United States Pharmacopeia (USP) monograph. Every 100 grams of GPOV – Povidone-Iodine Ointment USP 5% w/w contains:
5 grams pure Povidone-Iodine
Equivalent to 0.5 grams (0.5%) available (free) iodine
Water-soluble ointment base that spreads easily and forms a protective layer
Ready to stock the most trusted 5% ointment in India?
Section 2: The Core Difference – Available Iodine (The Only Thing That Actually Kills Germs)
This is the single most misunderstood point:
Strength
Total Povidone-Iodine
Available (Free) Iodine
Real Killing Power
GPOV 5% (Aingo Pharma)
5% w/w
0.5% w/w
Optimal & sustained
Generic 10% products
10% w/w
1.0% w/w
Very rapid but harsh
Yes — 10% has double the free iodine, but that extra iodine doesn’t mean “double protection”.
In fact, studies show:
0.5% available iodine is sufficient to kill 99.999% of bacteria in 30–60 seconds
Anything above 1% increases cytotoxicity (damages healthy cells) without extra benefit
Reference: Journal of Hospital Infection (2019) – “Concentrations above 0.75% available iodine show no additional microbicidal advantage but increase tissue toxicity.”
That’s exactly why GPOV – Povidone-Iodine Ointment USP 5% w/w is the sweet spot.
Doctors & stockists — want visual aids, catch covers & doctor samples of GPOV?
WhatsApp “GPOV Samples” to 91-8288084022 and get them delivered in 48 hours!**
Clinical Uses of Povidone-Iodine 5% (GPOV)
GPOV 5% Povidone-Iodine Ointment is clinically used for: