---
product_id: 51285746
title: "Precision Blend 4.5% Developer for Gray Blending 450ml"
brand: "american crew"
price: "€ 38.64"
currency: EUR
in_stock: true
category: "American Crew"
url: https://www.desertcart.fr/products/51285746-precision-blend-4-5-developer-for-gray-blending-450ml
store_origin: FR
region: France
---

# Approx. 30 min full cure time 4 customizable shades for precision blending 450ml professional-grade developer Precision Blend 4.5% Developer for Gray Blending 450ml

**Brand:** american crew
**Price:** € 38.64
**Availability:** ✅ In Stock

## Summary

> 🎨 Blend Boldly, Look Effortlessly Sharp

## Quick Answers

- **What is this?** Precision Blend 4.5% Developer for Gray Blending 450ml by american crew
- **How much does it cost?** € 38.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/51285746-precision-blend-4-5-developer-for-gray-blending-450ml)

## Best For

- american crew enthusiasts

## Why This Product

- Trusted american crew brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Brand Legacy:** American Crew leads men’s grooming with proven, authentic performance
- • **Generous 450ml Bottle:** Ample supply for multiple applications, perfect for at-home or professional use
- • **Semi-Permanent Formula:** Subtle, natural-looking coverage that refreshes your style without commitment
- • **Effortless Gray Blending:** Four expert techniques make application seamless and creative
- • **Professional-Grade Developer:** Formulated to enhance color results with salon-quality precision

## Overview

American Crew Precision Blend 4.5% Developer is a 450ml semi-permanent hair color developer designed specifically for men seeking natural gray blending. Featuring four expert application techniques, it delivers professional-grade results in about 30 minutes, enhancing color vibrancy and ease of use. Trusted by grooming pros, this lotion formula offers a perfect balance of performance and convenience for the modern man.

## Description

American Crew Precision Blend 4.5% Developer for Gray Blending 450ml : desertcart.co.uk: Beauty

## Features

- American Crew recommends American Crew 15 volume Developer in order to produce optimal results for gray blending
- Use in conjunction with American Crew Precision Blend Shades: Light, Medium Ash, Medium Natural and Dark

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003EU3OU6 |
| ASIN  | B003EU3OU6 |
| Benefits | Enhances hair coloring results with professional-grade developer |
| Best Sellers Rank | 36,593 in Beauty ( See Top 100 in Beauty ) 316 in Hair Deep Conditioners & Treatments |
| Brand Name | American Crew |
| Colour | brown |
| Container Type | Bottle |
| Customer Reviews | 4.4 4.4 out of 5 stars (270) |
| Customer reviews | 4.4 4.4 out of 5 stars (270) |
| Date First Available  | 21 Jun. 2011 |
| Full Cure Time | 3E+1 Minutes |
| Global Trade Identification Number | 00738678247778, 00785923323596 |
| Hair Color Permanence | Semi-Permanent |
| Hair Type | All |
| Is discontinued by manufacturer  | No |
| Item Form | Liquid |
| Item Type Name | Developer 15VOL 4.5% |
| Item Weight | 1.1 Pounds |
| Item model number  | 0738678247778 |
| Manufacturer | American Crew |
| Manufacturer  | American Crew |
| Manufacturer Part Number | ACW0056 |
| Material Features | Natural |
| Model Number | 0738678247778 |
| Number of Items | 1 |
| Product Dimensions  | 10 x 5 x 15 cm; 498.95 g |
| Suitable Hair Colour | All Hair Colours |
| UPC | 785923323596 787734034999 738678247778 |
| Unit Count | 450.0 millilitre |

## Product Details

- **Brand:** American Crew
- **Colour:** brown
- **Full cure time:** 3E+1 Minutes
- **Hair type:** All
- **Item form:** Liquid
- **Material feature:** Natural
- **Number of items:** 1
- **Package information:** Bottle
- **Product benefits:** Enhances hair coloring results with professional-grade developer
- **Unit count:** 450.0 millilitre

## Images

![Precision Blend 4.5% Developer for Gray Blending 450ml - Image 1](https://m.media-amazon.com/images/I/41OXBoO8wAL.jpg)

## Questions & Answers

**Q: can you reuse the unused part?**
A: Yes, the developer is not time-sensitive for use. Just tightly cap the bottle until the next use.

**Q: What ratio of this developer to the American Crew precision blend products do you use?**
A: I just estimate how much I will need to do all my hair and use that amount.  I am never very exact.  The same with the coloring.  I just add 3 or 4 big drops, mix it together and  let it set for a couple of minutes before applying.  It is a great product and works very well.  I like a little grey left so it looks very natural.  This is the best hair color that I have tried.  You can also vary the length of time you leave it on depending on the look you want.

**Q: what's the size or how many ML is this? the pictures says its 16.9 oz but in the title its just 15.2 oz. thank you very much.**
A: It's what the bottle says, 16.9 fluid ounces.

**Q: When will you carry this item again?**
A: Yes it is good for about a year

## Frequently Bought Together

- American Crew Classic Hair Developer, 450 ml
- American Crew Precision Blend Lote Cream Number 5/6 Gel Set, Medium/Ash - Pack of 3

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**Shop now:** [https://www.desertcart.fr/products/51285746-precision-blend-4-5-developer-for-gray-blending-450ml](https://www.desertcart.fr/products/51285746-precision-blend-4-5-developer-for-gray-blending-450ml)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-11-10*