Leave-in / Everyday leave-in, medium-weight
Scent:
Notes: fresh.
Manufacturer page: shopgarnier.com
Personal fit
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The rest of what your plan weighs on this product.
The consultation builds your hair profile, then reads every factor in this table against it — and tells you where this product fits, or what to use instead.
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Your avoid-list
Upper-mid price for a leave-in
$5.13/oz at 1.7 oz — more than 59% of the 890 leave-ins , which mostly run $1.65–7.87/oz.
Great for
Maybe skip if
What the formula actually does
Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.
Middle of the range — noticeable on fine hair, light on coarse hair.
Some slip, mostly from esters or silicones rather than conditioners.
No humectants found — nothing here pulls water into the hair.
No oils or butters in the list.
No protein or amino acids in the list.
The brand states a protection temperature — a label claim, not a measurement.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance sits in the first eight ingredients — a larger share of the formula.
Ingredients that matter
The workhorse ingredients plus anything lower down that changes a decision. These chips name what an ingredient does — they are not safety scores, and no ingredient here is rated good or bad on its own.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| Dimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| Bis-(Morpholinomethyl C1-4 Dialkoxysiloxy) Dimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| Bis-Cetearyl Amodimethicone | conditioning agent | Reduces combing force | Buildup |
| FragranceParfum/Fragrance | fragrance | The scent | Fragrance |
US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Annotations keep three readings separate: the ingredient's general function, its role in this product type, and what its position can support.
The most common conditioning silicone. It coats the strand for shine, slip, and frizz control, and needs a detergent (not just water) to wash out.
Listed in the first three ingredients, it is likely a structural part of this formula.
A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
A silicone. Silicones coat the strand for slip, shine and frizz control; unless the name carries PEG or PPG, removing one takes a detergent rather than water.
Listed in the first three ingredients, it is likely a structural part of this formula.
A conditioning silicone that deposits selectively on damaged hair for slip and shine.
Listed in the first three ingredients, it is likely a structural part of this formula.
A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
Amino-functional silicone carries a positive charge, so it binds where the cuticle is worn rather than coating evenly. Damaged areas get most of it.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
Ingredient list captured 2026-08-23. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 1.7 oz
Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product. and 1 listing we don’t count — grey-market or unverified sellers.
Formula
Mid-range per ounce for a shorter formula: there is no conditioning agents up front here.
The formula score is completeness for the job: the share of the systems this product type is normally built around that we can find in this list, weighted. It is not efficacy, not quality, and it never compares across product types.
Does the same job, for less
Same derived functions — what it cleans, conditions, coats or holds — at a lower cost per ounce. Scent, texture and where you buy it can still differ.
See more alternatives in the product library
These are functional neighbours, not personal recommendations — they are close on formula, not chosen for anyone. Get the one that fits your hair, routine, and budget
Final decision
People who blow-dry or flat-iron who want heat protection and a protein-free formula
Worth skipping for anyone sensitive to fragrance, curly-method routines, or soft, over-stretchy hair that needs protein
We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.
Claims check
Claims are quoted from the brand. We only mark one supported, partly supported, or conflicting when the ingredient list actually speaks to it; everything else stays "stated by the brand", which is not a criticism — most claims simply cannot be read off a label.
Heat-activated leave-in anti-frizz hair serum
Silicones or film formers smooth the cuticle, which is the usual mechanism.
Smoother strands, less frizz.
Ultra glassy sleek that lasts up to 5 washes
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Heat protection up to 450F
Our library captures this as a heat protectant, but thermal protection is measured in a lab, not read off a list.
Sold for hot tools; untestable here.
Non-greasy and water-resistant formula
A mid-weight formula: light on coarse hair, noticeable on fine hair.
Depends how fine your hair is.
Infused with alpha-silanes for long-lasting smoothness
A named-ingredient story. What matters is where those sit in the list — see the ingredients table.
—
Check the position, not the name.
Formulated without parabens, phthalates, and DMDM Hydantoin
No parabens appear in the ingredient list.
—
Preserved without parabens.
We look at the first 10–15 ingredients and what they do in a formula — not marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.
Leaves hair smoother and frizz-free without feeling weighed down
Effective, affordable heat protectant, works well on thick curly-wavy hair
Develops a fishy/peculiar odor over time for some users
