Here's a more detailed explanation:
* Color Depositing Shampoos are Toning Agents: They primarily deposit small amounts of pigment to neutralize unwanted tones. They aren't designed to drastically change your base hair color.
* Platinum Blond Depositing Shampoos: These shampoos typically contain violet or blue pigments. Their main purpose is to counteract yellow or brassy tones in pale platinum blond hair, preventing it from turning a warm or yellowish shade.
* Golden Blond Hair: Your hair already has a warm base. A platinum blond shampoo is designed to *reduce* warmth, not create it.
* Possible Outcomes:
* Slightly Ashier/Cooler Tone: The shampoo could potentially neutralize some of the golden tones in your hair, making it appear a bit cooler or more ash-toned, but it won't likely achieve a true platinum look.
* No Noticeable Change: If your golden tones are quite strong, the small amount of pigment in the shampoo may not be enough to make a significant difference.
* Unevenness: If your hair has different levels of porosity (meaning some parts absorb color more readily than others), you might see some unevenness in the tone.
* Dullness: Overuse of toning shampoos can sometimes lead to a dull or muddy appearance, especially if your hair isn't light enough to benefit from the violet/blue tones.
In summary, using a platinum blond color depositing shampoo on golden blond hair is unlikely to turn it platinum. It might slightly shift the tone towards a cooler or ashier shade, but the effect is typically subtle.
Important Note: Always do a strand test before applying any color-depositing product to your entire head of hair. This will help you see how your hair reacts and prevent any unwanted surprises. Also, be aware that overuse can lead to buildup of pigment and potentially undesirable tones.