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Side by side

Nioxin Night density Rescue Serum vs Nioxin Scalp Relief Treatment

85% function match · 7 of the 10 functions we compared match Formula overlap 9%. Nioxin Night density Rescue Serum and Nioxin Scalp Relief Treatment share 1 ingredient among each other's most prominent.

Based on your consultation

Which of these fits your hair?

We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.

Your profile at a glance

  • Your answers appear here
  • Your answers appear here
  • Your answers appear here
  • Your answers appear here

When each one is the right call

What each formula is built for, from its own ingredient list.

  • Night density Rescue Serum — protein-sensitive hair
  • Scalp Relief Treatment — protein-sensitive hair

Side by side

Every trait, aligned

One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.

Trait
Nioxin Night density Rescue Serum — front of package Nioxin

Night density Rescue Serum

  • Scalp treatment
  • Prestige
  • Sulfate-free
  • Silicone-free
Nioxin Scalp Relief Treatment — front of package Nioxin

Scalp Relief Treatment

  • Scalp treatment
  • Salon
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$38–50 2.3 oz · $21.10/oz
$40 3.38 oz · $11.83/oz
Value / price positioning
Same job for less elsewhere $$$$$ Prestige tier · costs more than 77% of the 154 scalp treatments we’ve priced
Upper-mid price for a scalp treatment $$$$$ Salon tier · costs more than 60% of the 154 scalp treatments we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Same
High Humectants near the top — water-binding is a headline mechanism here. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Slip / detangling Differs
Little Nothing here is built to reduce combing force. Your hair
Some Some slip, mostly from esters or silicones rather than conditioners. Your hair
Weight on hair Same
Light Water-first and light: unlikely to flatten fine hair. Your hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Fragrance
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Protein Same
None No protein or amino acids in the list. Your hair
None No protein or amino acids in the list. Your hair
Silicone / wax buildup Same
None Nothing here needs a detergent wash to remove. Your hair
None Nothing here needs a detergent wash to remove. Your hair
Clarifying wash needed
Moderate Your hair
Moderate Your hair
Oils and butters Same
None No oils or butters in the list. Your hair
None No oils or butters in the list. Your hair
Hard-water defence Differs
None No chelating agent in the list. Your hair
Chelators present Chelators are present — they bind hard-water and pool minerals. Your hair
Formula completeness
out of 10
A simple formula
out of 10
A simple formula
Who should choose this
  • Protein-sensitive hairthat stiffens when protein is added
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
  • Easy to findsold through several channels
  • Protein-sensitive hairthat stiffens when protein is added
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
  • Very dry hairno fast-drying alcohol in the list
Why you might skip it
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Vegan and cruelty-freeour record does not support both claims here
  • Scents bother youthis product carries a scent
  • Dry or very humid airwhere heavy humectants work against you
  • Vegan and cruelty-freeour record does not support both claims here
from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.
More facts about each one
Type
Scalp treatmentserum
Scalp treatmentserum
Where to buy
Salons · Specialty beauty · Amazon
Brand website · Salons · Amazon
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Cruelty-free
Not cruelty-free · PETA-listed
Not cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described

Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".

The bottom line

The bottom line depends on your hair

Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.

Take the consultation

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The detail behind the table

Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.

Shared and distinct ingredients

Shared and distinct ingredients

Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.

What both formulas carry

IngredientNight density Rescue SerumScalp Relief Treatment
Water
Neutral
#2Leading
#1Leading
Fragrance
Fragrance
#5Below the 1% line
#4Below the 1% line
PEG-40 Hydrogenated Castor Oil
Stabilizes
#8Below the 1% line
#6Below the 1% line
Sodium Benzoate
Stabilizes
#22Below the 1% line
#7Below the 1% line

What only one of them carries

Night density Rescue Serum

Scalp Relief Treatment

Full ingredient list — Night density Rescue Serum (25)
Full ingredient list — Scalp Relief Treatment (24)

Claims check

What each brand says, against what each formula shows

Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.

VerdictsNight density Rescue SerumScalp Relief Treatment
Supported
1
0
Partly supported
0
0
Stated by brand
0
1
Potential conflict
0
0

Night density Rescue Serum

  • Lightweight and non-greasySupportedLess likely to weigh hair down.

Scalp Relief Treatment

  • SENSITIVE, DRY & ITCHY SCALPStated by brandSoothing, not an active treatment.

What owners say

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.

Night density Rescue Serum

Users often find the liquid light and non-greasy for overnight application.

US exact-product reviewer accounts; promotional sampling appears in the corpus. Review IDs: 1172115598, 1171689932, 1171580825, 1169661644

Leaking bottles and difficult dispensing recur in packaging complaints.

US exact-product reviewer accounts; promotional sampling appears in the corpus. Review IDs: 1169690823, 1169555383, 1168103122, 1148458466

Some users report scalp tenderness, itching or a burning sensation.

US exact-product reviewer accounts; promotional sampling appears in the corpus. Review IDs: 1172271437, 1169507711, 1153761231

Reports of fuller-looking hair are mixed with reports of no visible difference after several weeks.

US exact-product reviewer accounts; promotional sampling appears in the corpus. Review IDs: 1175637429, 1171789190, 1172271437, 1169661644, 1148458337

Scalp Relief Treatment

No review themes researched for this product yet.

Price check

Cost per ounce, in context

Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.

$11.83/oz vs $21.10/oz — Nioxin Night density Rescue Serum costs about 1.8× more per ounce than Nioxin Scalp Relief Treatment.

$1.25/oz median $7.19/oz $55.03/oz $21.10/oz Night density Rescue Serum $11.83/oz Scalp Relief Treatment

Every mark sits on one distribution because these are compared against the same set: 154 scalp treatments with a computable unit price.

Value readNight density Rescue SerumScalp Relief Treatment
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Upper-mid price for a scalp treatmentSits in the middle of the range for scalp treatments per ounce.

Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.

Compare with something else

Close formulas to each of these, as their own comparison pages.

Night density Rescue Serum vs Scalp Care Soothing SerumMizani · 100% function matchScalp Relief Treatment vs Mineral Detox Pre-Shampoo RinseKristin Ess · 95% function matchNight density Rescue Serum vs The Treatment Scalp SerumKilgourMD · 95% function matchScalp Relief Treatment vs Restore Scalp Serum, Fragrance FreeSEEN · 93% function matchNight density Rescue Serum vs Age Defense SerumNioxin · 95% function matchScalp Relief Treatment vs Serene Scalp Densifying Treatment SprayOribe · 93% function matchNight density Rescue Serum vs Scalp Revival Charcoal + Tea Tree Scalp TreatmentBriogeo · 95% function matchScalp Relief Treatment vs Hair Density Serum IntenseGrow Gorgeous · 92% function match

Night density Rescue Serum · Scalp Relief Treatment · All scalp treatments in the library

How this page was made

  • This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
  • We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
  • The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
  • 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.
  • 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.
  • 11 sources were consulted across the products on this page.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.

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