The three names are often used interchangeably. They shouldn't be.
Each refers to a distinct chemistry, a distinct outcome, and a distinct risk profile. This guide breaks down what each treatment actually does at the molecular level, who it suits, and how the Diamond V6.0 system compares against the other two.
At a Glance
| Property | Trad. Keratin | Br. Blowout | Nanoplastia | Diamond V6.0 |
|---|---|---|---|---|
| Formaldehyde release | Moderate–high | High | Low–moderate | Zero detectable |
| Duration | 6–12 weeks | 10–14 weeks | 8–10 weeks | 16 weeks |
| 4C compatibility | Variable | Often inconsistent | Limited | Engineered for it |
| Curl impact | Moderate loosening | Strong loosening | Subtle | Tunable |
| Iron temperature | 230 °C | 230 °C | 200–220 °C | 180 °C |
Traditional Keratin
Hydrolysed keratin proteins + methylene glycol. Releases formaldehyde at flat-iron temperatures.
Hair types 1A–3A who want pronounced smoothing and accept a 6–12 week wear cycle.
Underperforms on 4C and dense afro-textural hair. Frequent re-treatment compounds formaldehyde exposure.
Brazilian Blowout
Methylene glycol resin coating that deposits a sealant over the cuticle.
Maximum surface smoothness with significantly loosened curl.
Highest formaldehyde release of the three. Coats cuticle rather than penetrating cortex — wears unevenly.
Nanoplastia
Amino acids combined with tannic acid. Gentler smoothing without heavy formaldehyde load.
Hair types 2A–3B who want softening without losing curl pattern definition.
Performance on 4C is inconsistent. Shorter duration than alternatives.
Diamond V6.0
Diamond V6.0 was engineered specifically to resolve the trade-offs of the previous three. The only one of the four built from 4C compatibility outward, rather than 1B compatibility downward.
Zero detectable formaldehyde
Tannic-Sulfur Hybrid replaces methylene glycol entirely. UK HSE compliance automatic.
Cortex penetration
300-dalton peptides bond at cortex level. Even wear, no patchy drop-off.
Tunable smoothing
Consultation-based — your stylist sets the smoothing level within the validated window.
16-week clinical hold
47-salon UK audit, 1,847 clients, 92% reporting visible result at week 16.
Choosing Right
Choosing the wrong chemistry for your hair type is the most common reason a smoothing treatment “doesn't work.” A short consultation with a Diamond V6.0 certified stylist will assess your hair type, porosity, treatment history, and styling goals — and recommend the right chemistry, including non-V6.0 alternatives when they suit you better.