Side by side
DevaCurl Deep Sea Repair Seaweed Strengthening Mask vs DevaCurl Heaven in Hair Moisturizing Deep Conditioner
73% function match · 6 of the 10 functions we compared match Formula overlap 55%. DevaCurl Deep Sea Repair Seaweed Strengthening Mask and DevaCurl Heaven in Hair Moisturizing Deep Conditioner share 4 ingredients 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.
- Deep Sea Repair Seaweed Strengthening Mask — maximum slip
- Heaven in Hair Moisturizing Deep Conditioner — 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”.
DevaCurl
Deep Sea Repair Seaweed Strengthening Mask
- Mask / treatment
- Salon
- Sulfate-free
- Silicone-free
DevaCurl
Heaven in Hair Moisturizing Deep Conditioner
- Mask / treatment
- Salon
- Sulfate-free
- Silicone-free
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Curly-method routinesno sulfates and no water-insoluble silicones
- Silicone-free routinesno silicones appear in the list
- 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
- Curly-method routinesno sulfates and no water-insoluble silicones
- Scents bother youthis product carries a scent
- Stretching wash dayswaxes stay until a detergent wash removes them
- Dry or very humid airwhere heavy humectants work against you
- Scents bother youthis product carries a scent
- Very dry or damaged hairit contains fast-drying alcohol
- Hair that needs proteinthere is none in this list
More facts about each one
- sulfate-free
- silicone-free
- curly-method compatible
- sulfate-free
- silicone-free
- protein-free
- curly-method compatible
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
Deep Sea Repair Seaweed Strengthening Mask
Heaven in Hair Moisturizing Deep Conditioner
Full ingredient list — Deep Sea Repair Seaweed Strengthening Mask (41)
-
1
Water
- solvent
-
2
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
3
Glycerin
- humectant
-
4
Cocos Nucifera (Coconut) Oil
- oil
- emollient
-
5
Behentrimonium Chloride
- conditioning agent
- cleanser
-
6
Caprylic/Capric Triglyceride
- light ester
- emollient
-
7
Lauryl Laurate
- light ester
- emollient
-
8
Hydrogenated Ethylhexyl Olivate
- light ester
- emollient
-
9
Cetyl Alcohol
- fatty alcohol
- emollient
- thickener
-
10
Dicetyldimonium Chloride
- conditioning agent
-
11
Limonium Gerberi Extract
- botanical extract
- 12 Cytoseira Compressa Extract
-
13
Helianthus Annuus (Sunflower) Seed Wax
- wax
- film former
-
14
Hydrolyzed Rice Protein
- film former
- protein
- hydrolysed protein
-
15
Hydrolyzed Soy Protein
- film former
- protein
- hydrolysed protein
-
16
Soy Amino Acids
- amino acid
- humectant
- protein
-
17
Wheat Amino Acids
- protein
- amino acid
-
18
Melissa Officinalis Extract
- botanical extract
-
19
Humulus Lupulus Extract
- botanical extract
-
20
Cymbopogon Schoenanthus Extract
- botanical extract
-
21
Chamomilla Recutita Extract
- botanical extract
-
22
Rosmarinus Officinalis Extract
- botanical extract
-
23
Achillea Millefolium Extract
- botanical extract
-
24
Zea Mays Starch
- starch
- absorbent
-
25
Kaolin
- clay
- powder
-
26
Hydrogenated Olive Oil Unsaponifiables
- emollient
- sealant
-
27
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
28
Arginine Hcl
- amino acid
- humectant
-
29
Threonine
- amino acid
-
30
Serine
- amino acid
-
31
Oleic/Linoleic/Linolenic Polyglycerides
- light ester
- emollient
-
32
Lecithin
- emulsifier
- emollient
-
33
Propylene Glycol Dicaprylate/Dicaprate
- light ester
- emollient
-
34
PPG-1 Trideceth-6
- emulsifier
- solubilizer
-
35
Polyquaternium-37
- conditioning agent
- film former
- polymer
- thickener
-
36
Cetrimonium Chloride
- conditioning agent
- cleanser
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
37
Lactic Acid
- pH adjuster
- humectant
- exfoliant
-
38
Citric Acid
- pH adjuster
- hard-water chelator
-
39
Phenoxyethanol
- preservative
-
40
Potassium Sorbate
- preservative
-
41
Fragrance
- fragrance
- declared fragrance
Full ingredient list — Heaven in Hair Moisturizing Deep Conditioner (29)
-
1
Water
- solvent
-
2
Glycerin
- humectant
-
3
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
4
Cetyl Esters
- light ester
- emollient
- thickener
-
5
Cetrimonium Chloride
- conditioning agent
- cleanser
-
6
Glycol Distearate
- opacifier
- emollient
-
7
Ceteareth-20
- emulsifier
-
8
Behentrimonium Chloride
- conditioning agent
- cleanser
-
9
Hydroxypropyltrimonium Hydrolyzed Corn Starch
- conditioning agent
- film former
- starch
-
10
Hydroxyethylcellulose
- gum
- thickener
- film former
-
11
Isopropyl Alcohol
- drying alcohol
- solvent
-
12
Polyquaternium-10
- conditioning agent
- film former
- polymer
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
13
Citric Acid
- pH adjuster
- hard-water chelator
-
14
Disodium Phosphate
- pH adjuster
- salt
-
15
Ethylhexylglycerin
- preservative
- emollient
-
16
PEG-6 Caprylic/Capric Glycerides
- emulsifier
- emollient
-
17
Polyquaternium-7
- conditioning agent
- film former
- polymer
-
18
Polysorbate 60
- emulsifier
- solubilizer
-
19
Propylene Glycol
- humectant
- solvent
- 20 Quaternium-82
-
21
Sodium PCA
- humectant
-
22
Sodium Phosphate
- pH adjuster
- salt
-
23
Tocopherol
- antioxidant
- vitamin
-
24
Triethanolamine
- pH adjuster
-
25
Phenoxyethanol
- preservative
-
26
Sodium Benzoate
- preservative
-
27
Fragrance
- fragrance
- declared fragrance
-
28
Benzyl Benzoate
- fragrance
- named fragrance allergen
-
29
Linalool
- fragrance
- named fragrance allergen
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.
Deep Sea Repair Seaweed Strengthening Mask
No claims recorded for this product beyond the ones above.
Heaven in Hair Moisturizing Deep Conditioner
moisturizing
SupportedHelps hair feel hydrated.detangling
SupportedEasier detangling, less breakage.frizz control
SupportedSmoother strands, less frizz.shine
Partly supportedA hint of gloss.curl definition
SupportedHolds a clump together.
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.
Deep Sea Repair Seaweed Strengthening Mask
No review themes researched for this product yet.
Heaven in Hair Moisturizing Deep Conditioner
Thick formula fully coats hair root-to-tip and rinses clean without a greasy residue, leaving hair very soft
Ulta verified purchaser, gifted product, 5-star reviewWorks well as a weekly wash-day mask for very dry, coarse-texture curls
Ulta verified purchaser, 4-star reviewDried hair out further for at least one very dry/curly user despite the moisturizing claims
Ulta verified purchaser, 1-star reviewThick product is hard to dispense fully from the bottle/container
Ulta verified purchaser, 4-star reviewPrice 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.
$3.63/oz vs $4.28/oz — DevaCurl Deep Sea Repair Seaweed Strengthening Mask costs about 1.2× more per ounce than DevaCurl Heaven in Hair Moisturizing Deep Conditioner.
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.
Deep Sea Repair Seaweed Strengthening Mask · Heaven in Hair Moisturizing Deep Conditioner · 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.
- 10 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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