Side by side
Paul Mitchell Bond Rx Step 1 Professional Bond Builder vs Paul Mitchell Sealing Mask
61% function match · 3 of the 7 functions we compared match Formula overlap 2%. Paul Mitchell Bond Rx Step 1 Professional Bond Builder and Paul Mitchell Sealing Mask share 1 ingredient among each other's most prominent.
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.
- Bond Rx Step 1 Professional Bond Builder — protein-hungry hair
- Sealing Mask — 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”.
- Protein-hungry hairthat stretches and stays stretched when wet
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Short ingredient listsfifteen ingredients or fewer
- Protein-sensitive hairthat stiffens when protein is added
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Short shower windowsit works in ten minutes or less
- Scents bother youthis product carries a scent
- Protein-sensitive hairthat goes stiff or straw-like on protein
- Dry or very humid airwhere heavy humectants work against you
- Scents bother youthis product carries a light scent
- Curly-method routinesthese silicones need a detergent to remove
- Very dry or damaged hairit contains fast-drying alcohol
More facts about each one
- sulfate-free
- protein-free
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.
$49.00 once, for your consultation and hair profile. No subscription, no required purchases.
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
What only one of them carries
Bond Rx Step 1 Professional Bond Builder
Full ingredient list — Bond Rx Step 1 Professional Bond Builder (11)
-
1
Water
- solvent
-
2
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
3
Behentrimonium Chloride
- conditioning agent
- cleanser
-
4
Propylene Glycol
- humectant
- solvent
-
5
Polyquaternium-37
- conditioning agent
- film former
- polymer
- thickener
-
6
Hydrolyzed Vegetable Protein PG-Propyl Silanetriol
- film former
- protein
- hydrolysed protein
-
7
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
- 8 Polyethylene Glycol-12 Dimethicone
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
9
Phenoxyethanol
- preservative
-
10
Methylparaben
- paraben
- preservative
-
11
Fragrance
- fragrance
- declared fragrance
Full ingredient list — Sealing Mask (29)
-
1
Water
- solvent
-
2
Stearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
3
Ethylhexyl Olivate
- light ester
- emollient
-
4
Behentrimonium Methosulfate
- conditioning agent
- emulsifier
-
5
Cetyl Alcohol
- fatty alcohol
- emollient
- thickener
-
6
Glycerin
- humectant
-
7
Squalane
- emollient
- conditioning agent
-
8
Amodimethicone
- silicone
- conditioning agent
- film former
-
9
Trimethylsiloxyamodimethicone
- conditioning agent
- film former
- silicone
-
10
Dicetyldimonium Chloride
- conditioning agent
-
11
Cetyl Esters
- light ester
- emollient
- thickener
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
12
Ethylhexylglycerin
- preservative
- emollient
-
13
Phenyl Trimethicone
- silicone
- emollient
-
14
Dimethicone
- silicone
- emollient
- conditioning agent
-
15
Cetrimonium Chloride
- conditioning agent
- cleanser
-
16
Isopropyl Alcohol
- drying alcohol
- solvent
-
17
Acrylamidopropyltrimonium Chloride/Acrylamide Copolymer
- film former
- polymer
- conditioning agent
-
18
Acetic Acid
- pH adjuster
-
19
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
20
Polysorbate 60
- emulsifier
- solubilizer
-
21
C11-15 Alketh-7
- emulsifier
- solubilizer
-
22
c12-16 alketh-9
- emulsifier
-
23
Trideceth-12
- emulsifier
- solubilizer
-
24
Trideceth-15
- emulsifier
- solubilizer
-
25
Trideceth-3
- emulsifier
-
26
Trisodium Hedta
- hard-water chelator
-
27
Phenoxyethanol
- preservative
-
28
Fragrance
- fragrance
- declared fragrance
-
29
Hexamethylindanopyran
- fragrance
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.
Bond Rx Step 1 Professional Bond Builder
designed to transform any lightening or hair color service into a powerful bond-building treatment
SupportedReinforces a damaged strand.addresses breakage, brittleness, and damage caused by chemical treatments
SupportedReinforces a damaged strand.contains bonding agents, amino acids, and proteins
SupportedReinforces a damaged strand.designed to be used on all hair types and colors
Stated by brandSee the fit panel instead.retains 85 percent of disulfide bonds while lightening (Step 1 + Step 2, vs. virgin hair)
SupportedReinforces a damaged strand.
Sealing Mask
up to 69% smoother hair with long-lasting results
Stated by brandOnly the brand’s testing shows this.all-day humidity resistance
Stated by brandMay help, but not measurable here.cruelty-free
SupportedMatches our researched record.color-safe
SupportedLess fade per wash.vegan
SupportedMatches our researched record.paraben-free
SupportedPreserved without parabens.gluten-free
Stated by brandCan’t be confirmed from label.
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.
Bond Rx Step 1 Professional Bond Builder
No review themes researched for this product yet.
Sealing Mask
Does not weigh down fine/thin hair; softens strands and reduces split ends, pleasant fruity scent, recyclable packaging noted
Pleasantly surprised - didn't weigh down fine, thin hairReduced frizz on dyed/long hair after one use; some users suggest leaving on longer than the label instructs
Moisturized strands, reduced frizz after one applicationEffectively detangles and seals split ends with a mild, fragrance-sensitive-friendly scent
Love this sealing mask A+ - detangles, seals split ends, fresh mild scentPrice 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.
$4.51/oz vs $8.29/oz — Paul Mitchell Bond Rx Step 1 Professional Bond Builder costs about 1.8× more per ounce than Paul Mitchell Sealing Mask.
Every mark sits on one distribution because these are compared against the same set: 347 masks and treatments with a computable unit price.
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.
Bond Rx Step 1 Professional Bond Builder · Sealing Mask · All masks and 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.
- 6 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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