Marc Anthony Grow Long Ultimate Blowout Heat Protectant
- Item Volume: 6.7 fl oz
- Liquid Volume: 6.7 fl oz
- Hair Type: All, Curly, Damaged, Frizzy, Wavy
- Item Form: Liquid
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An anti-frizz, heat-protecting blowout spray with humidity resistance as its main selling point, not a hair-growth product despite the name.
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ASIN: B0DT7QJSJRCategory: Hair Sprays
Overview
Marc Anthony's Grow Long spray is a heat-activated anti-frizz and heat-protection formula meant to smooth hair into a blowout finish and hold that smoothness through humidity, using caffeine, biotin, and ginseng as conditioning ingredients rather than growth actives.
The name points at hair growth, but the brand's own copy is upfront that it does not grow new hair, so the caffeine, biotin, and ginseng here are working as conditioning ingredients rather than a growth treatment. The formula is heat-activated, meaning it's built to be applied before blow-drying with tension or a flat iron, not sprayed on and left to work at room temperature. The humidity-resistance figures come from the brand's own testing rather than an independent source.
- Heat-activated anti-frizz shield applied before blow-drying
- Brand-tested humidity resistance up to 72 hours
- Heat protection rated to 450 degrees Fahrenheit
- Conditioning blend of caffeine, biotin, and ginseng
Who it's for
Fits anyone doing a blowout who wants the smoothness to survive humid weather and multiple washes. Less useful for people expecting the Grow Long name to mean actual hair growth, since the brand states it doesn't.
Pros and cons
- Heat-activated formula built for a smooth blowout
- Brand testing claims up to 72-hour humidity resistance
- Heat protection up to 450 degrees Fahrenheit
- Conditions with caffeine, biotin, and ginseng
- Does not grow new hair, despite the product name
- Humidity-resistance figures come from the brand's own testing
- Needs a blow-dry step to activate
Performance notes
This is a heat-activated formula, so it needs to be applied to clean, towel-dried hair and then blow-dried with tension, or followed with a flat iron, for the anti-frizz shield to set. Marc Anthony's own testing describes up to 72 hours of humidity resistance through multiple washes, alongside heat protection up to 450 degrees Fahrenheit during the blow-dry step.
Specifications
| Brand | Marc Anthony |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.53 pounds |
| Capacity & performance | |
| Item Volume | 6.7 fl oz |
| Liquid Volume | 6.7 fl oz |
| Construction & materials | |
| Material Type Free | Paraben Free, Phthalate Free, Sulfate Free |
| Included components | |
| Unit Count | 6.7 fl oz |
| Other details | |
| Hair Type | All, Curly, Damaged, Frizzy, Wavy |
| Item Form | Liquid |
| Scent Name | Grow Long Ultimate Blowout Spray |
| Number Of Items | 1 |
| Product Benefits | Breakage Control, Frizz Control, Heat Protection, Smoothening |
Frequently asked questions
Does Marc Anthony Grow Long actually grow hair?
No, the brand states plainly that this product does not grow new hair, the name refers to the product line rather than a growth claim.
How is it applied?
It's a heat-activated formula applied to clean, towel-dried hair, then blow-dried with tension or followed with a flat iron.
How long does the anti-frizz effect last?
Marc Anthony's own testing describes humidity resistance lasting up to 72 hours, even through multiple washes.