an advanced serum for long-term hair fullness and vitality
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Finisher / Serum, lean
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Listing used for research: ulta.com
Personal fit
Complete the consultation to see exactly how well this product fits your hair and your goals. With 2,400+ products in our library we can match exactly the right products to you.
$49.00 one-time consultation, no subscription
Add the optional $49/year membership for unlimited adjustments for changes in weather and lifestyle.
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.
Start your consultation$49.00 once, for your consultation and hair profile. No subscription, no required purchases.
Your avoid-list
Priced above most serums
$16.00/oz at 1 oz — more than 80% of the 77 serums , which mostly run $3.25–14.50/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.
No oils or butters in the list.
Nothing here needs a detergent wash to remove.
Fragrance is listed; it sits below the working ingredients.
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 |
|---|---|---|---|
| Aqua (Eau) | — | — | Neutral |
| Panthenol | humectant | Pulls water into the hair | Detangles |
| Propanediol | humectant | Pulls water into the hair | Moisturizes |
| Dextran | — | — | Neutral |
| Acetyl Tetrapeptide-3 | — | — | Neutral |
| Trifolium Pratense (Clover) Flower | — | — | Neutral |
| Xanthan Gum | gum | Natural hold and clump definition | Holds |
| Sodium Benzoate | preservative | Keeps the product from spoiling | Stabilizes |
| Caffeine | active | A secondary active | Active |
| FragranceParfum (Natural) | 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.
Provitamin B5. It draws in water and penetrates the strand a little, which is why it is the standard ingredient for softness and shine claims.
Listed in the first three ingredients, it is likely a structural part of this formula.
It hydrates without adding oil or a film, which is the combination fine hair usually needs.
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
A humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.
A corn-derived humectant and solvent, often chosen as a lighter-feeling alternative to propylene glycol.
Listed in the first three ingredients, it is likely a structural part of this formula.
Light and water-binding rather than oily, so it hydrates without contributing weight.
A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
A fermented sugar gum that thickens water-based formulas and adds soft, natural hold.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
A polysaccharide film stays softer than a synthetic one as it dries, which is what leaves a curl defined but still able to move.
A soft film binds neighbouring strands together, which is most of what keeps flyaways lying down without stiffness.
Gum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.
A food-grade preservative that works only in acidic formulas, which is why it usually appears alongside citric acid.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A preservative booster that also adds a little softness. Almost always paired with phenoxyethanol.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A large water-binding molecule that sits on the surface holding moisture.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
An amino acid that holds water and carries a positive charge, so it is drawn to damaged spots on the strand.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
An acid used to set pH and, in scalp products, to loosen flakes.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
A light humectant and carrier that helps extracts dissolve.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Light and water-binding rather than oily, so it hydrates without contributing weight.
A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
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 2026-09-09. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 1 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.
Formula
It costs more per ounce than 80% of the 77 serums we’ve priced while the formula leaves out shine system — a system most of the format carries.
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.



Final decision
Vegan and cruelty-free shoppers, looking for a vegan, cruelty-free product
Worth skipping for anyone sensitive to fragrance, anyone who will not scrunch out a cast, or hair that reads dull
Nothing in our library matches it closely at a lower price.
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.
an advanced serum for long-term hair fullness and vitality
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
clean ingredients
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
cruelty-free
Our researched record has this brand as cruelty-free.
—
Matches our researched record.
vegan
Our researched record has this brand or product as vegan.
—
Matches our researched record.
made in the USA
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
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.
Many reviewers use it as a nightly or daily scalp massage and describe the scalp feeling calmer and more comfortable afterward.
Ulta shoppers, including some who bought it specifically for scalp tenderness or a scalp issueReviewers with fine or thin hair say the serum absorbs fully and leaves no residue or weighed-down feeling, unlike heavier oils.
Ulta shoppers, several self-describing as having fine or thin hairReviewers report a visible boost in hair volume, thickness and body, particularly on fine or thinning hair.
Ulta shoppers, several self-describing as having fine, thin or wavy hair