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Masami

Mekabu Hydrating Shine Serum

Finisher / Serum, glossing

  • Finisher
  • serum
  • Sulfate-free
  • Protein-free
Size1.7 fl oz
Price$34seen at one store · 1.7 oz
Price / oz$20.00/ozat 1.7 oz
Where to buy1 store

Add it to your products. We’ll tell you if it’s ever recalled.

Scent:

Reviewers describe it as fresh, sweet.

Manufacturer page: lovemasami.com

Personal fit

Is this right for you?

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$49 with 60 days of follow-up questions and plan updates

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Priced above most serums

$20.00/oz at 1.7 oz, more than 87% of the 136 serums , which mostly run $3.94–14.80/oz.

Price and stores

Great for

Protein-sensitive hairthat stiffens when protein is added
Dull-looking haira recognised shine system is present
Matte, textured stylesabsorbent powders do the mattifying
Very dry hairno fast-drying alcohol in the list
Aerosol avoidancea pump or tube, not a pressurised can
A wide range of haira middle-of-the-range weight

Maybe skip if

this product has a scent
Curly-method routinesthese silicones need a detergent to remove
Tight budgetsit sits in the upper price tiers
Picking it up locallywe’ve only seen it sold in one channel

Whether a finisher this rich looks shiny or greasy on you depends on your strand thickness and how oily your hair gets. Your consultation answers that.

What the formula actually does

Read from the label, not the marketing

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.

Shine system Silicone serum

A silicone or oil blend does the shine work here.

Weight on the hair Medium

Middle of the range: noticeable on fine hair, light on coarse hair.

Oils and butters None

No oils or butters in the list.

Needs detergent to remove Yes

Water-insoluble silicones or waxes: a detergent wash is what removes them.

Fast-drying alcohol None

No fast-drying alcohol in the list.

Fragrance Prominent

Fragrance is in the first eight ingredients, so it makes up a larger share of the formula.

from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.

Ingredients that matter

The ingredients that change a decision

The workhorse ingredients, plus anything lower down that changes a decision. The chips name what an ingredient does. They are not safety scores, and no ingredient here is rated good or bad on its own.

IngredientWhat it doesWhy it mattersChip
CyclopentasiloxaneCyclomethicone silicone The shine system Buildup
Dimethicone silicone The shine system Buildup
C12-15 Alkyl Benzoate light ester Light slip without much weight Shine
Undaria Pinnatifida PowderUndaria Pinnatifida (Mekabu) Powder absorbent — Stabilizes
Macrocystis Pyrifera (Kelp) Extract botanical extract A plant extract, there as much for marketing as for function Neutral
Fragrance fragrance The scent Fragrance
What the list leaves out, and what it carriesThe list carries no sulfates or drying alcohols. No protein: a moisture formula, not a repair one. Fragrance is on the label. Water-insoluble silicones that need a detergent wash to remove.
Full ingredient list (6)

In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.

  • 1 Cyclopentasiloxane · Cyclomethicone
    General function

    A light, fast-evaporating silicone that spreads other ingredients then leaves. It gives serums their weightless glide.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitBuild-up-sensitive routines

    It leaves the hair by evaporating rather than by being washed off, so it is not part of what accumulates.

    May suitClimate-sensitive or frizz-prone hair

    A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.

    May suitFine or easily flattened hair

    A cyclic silicone evaporates after it has spread the formula, so it carries the other ingredients without leaving weight behind.

    PubChem
    • silicone
    • emollient
  • 2 Dimethicone
    General function

    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.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitClimate-sensitive or frizz-prone hair

    A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.

    May suitFrizz-prone, damaged, or high-friction hair

    Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

    May not suitBuild-up-sensitive routines

    Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.

    • silicone
    • emollient
    • conditioning agent
  • 3 C12-15 Alkyl Benzoate
    General function

    A dry-feeling ester used for a silky, non-greasy finish - a common silicone substitute.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitFine or easily flattened hair

    A light emollient: it softens the surface with noticeably less weight than an oil or a butter.

    May suitFrizz-prone, damaged, or high-friction hair

    Spreads thin and lowers friction between strands without the heaviness of a fixed oil.

    • light ester
    • emollient
  • 4 Undaria Pinnatifida Powder · Undaria Pinnatifida (Mekabu) Powder
    • absorbent
    • binder
    • powder
    • thickener
  • 5 Macrocystis Pyrifera (Kelp) Extract
    General function

    A seaweed extract used at low levels for moisture and mineral claims.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    • botanical extract
  • ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
  • 6 Fragrance
    General function

    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.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.

    • fragrance
    • declared fragrance

What the whole list adds up to

  • 3 emollients
  • 2 silicones
  • 1 conditioning agent
  • 1 light ester
  • 1 absorbent
  • 1 binder
  • 1 powder
  • 1 thickener
  • 1 botanical extract
  • 1 fragrance
  • 1 declared fragrance

Ingredient list captured 2026-08-27. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 1.7 oz

Seen at $34 1 store · checked Aug 27
Good value under $10 Under $5.67/oz it costs less than three-quarters of the 5 products we score as doing the same job

Priced above the products that do the same job. Stores sell it above the $10 line; products that do this job typically go for about $21 at this size.

Show the price ladder
Where we’ve seen it1 listing · 1 store

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.

How we work this out
  1. 1.7 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
  2. Seen at $34 is the price we have observed for the 1.7 oz. We need three stores before we call a price commonly seen.
  3. Good value under $10 comes from the 5 products we score as doing the same job as this one. A quarter of them cost less than $5.67/oz; at 1.7 oz that is $10. Under that line you are paying less than most of them.
  4. About $21 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 1.7 oz.

Formula

Formula score
8 of 10

Above the range for serums per ounce for a complete formula, with no close, lower-priced match in our library.

How the score is counted
  • Nothing in our library does the same job for less
  • Costs more per ounce than 87% of the 136 serums we’ve priced
  • Covers 4 of the 6 things a serum should do
  • Reviewers mention 2 things they like about how it performs
  • A shine systemThe silicone, oil, or ester that produces gloss.3 pts
  • A weightless carrierDelivers the shine without leaving grease.2 pts
  • Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
  • An antioxidantKeeps the oils in the bottle from going off.1 pt
  • No drying alcohol in the first threeFast drying without leading on alcohol.1 pt
  • Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt

The formula score measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.

Does the same job

Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.

narkaClosest function Gentle Shine Hair Essence $29.70/oz $9.70/oz more
  • Shine
  • Alcohol-free
  • No aerosol
Function
  • Water-binding (humectants)
  • Oils and butters
  • Protein
Also
  • Floral scent, not sweet
  • Vegan
  • Masstige tier
Compare
Paul MitchellLowest cost per oz Super Skinny Serum $4.17/oz $15.83/oz less
  • Heat protect
  • Protein-free
  • Alcohol-free
· Related function
Function
  • Film formers
Also
  • Cruelty-free
Compare
Garnier FructisClose function Sleek & Shine Sleek & Stay Heat-Activated Serum $5.13/oz $14.87/oz less
  • Heat protect
  • Protein-free
  • Alcohol-free
Function
  • Film formers
Also
  • Drugstore tier
Compare

See more alternatives in the product library

These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget

Suits every hair pattern

Final decision

Should you buy it?

An above-range pick for the hair it suits
Best user

Hair that stiffens on protein who want a protein-free formula and shine

Biggest tradeoff

Worth skipping for anyone sensitive to fragrance, curly-method routines, or people shopping on a budget

Best alternative if not

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.

Reviewers

What people report

Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.

Effective at breaking a product cast on curls, fresh-sweet scent

curly hair

Makes hair feel soft without greasiness

Shine boost described as subtle rather than dramatic

How this page was made

  • Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
  • The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
  • Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
  • The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
  • 2 sources consulted for this product (1 manufacturer or regulatory, 0 retailer, 1 editorial), last checked 2026-09-04.
  • Ingredient references are linked for 1 of 4 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
  • We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
  • Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
  • Formula readings: derivation v23. Record last updated 2026-11-01.

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