Side by side
Person & Covey DHS Tar Shampoo vs Uncle Funky's Daughter Defunk
79% function match · 7 of the 9 functions we compared match Formula overlap 0%. Person & Covey DHS Tar Shampoo and Uncle Funky's Daughter Defunk share no ingredient among each other's most prominent — which does not stop them doing the same job.
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.
- DHS Tar Shampoo — cuticle-smoothing pH
- Defunk — colour-treated 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”.
- Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
- Short ingredient listsfifteen ingredients or fewer
- Colour-treated hairthat fades faster in a sulfate wash
- Frequent washerswho want gentler cleansing
- Protein-hungry hairthat stretches and stays stretched when wet
- Curly-method routinesno sulfates and no water-insoluble silicones
- Sulfate-free routinesit uses a sulfate detergent
- Hair that tangles wetnothing here reduces combing force
- Picking it up locallywe have it recorded in one channel only
- Scents bother youthis product carries a scent
- Protein-sensitive hairthat goes stiff or straw-like on protein
- A squeaky-clean feelthis deliberately leaves conditioning behind
More facts about each one
- sulfate-free
- silicone-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
DHS Tar Shampoo
- Solubilized Coal Tar Extract (0.5% Coal Tar)
- Sodium Laureth Sulfate
- Cocamidopropyl Hydroxysultaine
- Peg-8 Distearate
- Sodium Chloride
- Citric Acid
Defunk
Full ingredient list — DHS Tar Shampoo (7)
- 1 Solubilized Coal Tar Extract (0.5% Coal Tar)
-
2
Water
- solvent
-
3
Sodium Laureth Sulfate
- sulfate cleanser
- cleanser
-
4
Cocamidopropyl Hydroxysultaine
- amphoteric cleanser
- secondary cleanser
- cleanser
-
5
Peg-8 Distearate
- thickener
- emulsifier
-
6
Sodium Chloride
- salt
- thickener
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
Citric Acid
- pH adjuster
- hard-water chelator
Full ingredient list — Defunk (11)
-
1
Water
- solvent
-
2
Saccharomyces Ferment (Vegetable Protein Extract)
- botanical extract
- protein
-
3
Anthemis Nobilis Flower Extract
- botanical extract
-
4
Lavandula Angustifolia (Lavender) Extract
- botanical extract
-
5
Humulus Lupulus (Hops) Extract
- botanical extract
-
6
Melissa Officinalis (Lemon Balm) Leaf Extract
- botanical extract
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
Rosmarinus Officinalis (Rosemary) Leaf Extract
- botanical extract
- antioxidant
-
8
Polysorbate 80
- emulsifier
- solubilizer
-
9
PEG-40 Hydrogenated Castor Oil
- solubilizer
- emulsifier
-
10
Fragrance
- fragrance
- declared fragrance
-
11
Sodium Hydroxymethylglycinate
- formaldehyde releaser
- preservative
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.
DHS Tar Shampoo
Tar-based formula for the treatment of dandruff and psoriasis
Stated by brandSoothing, not an active treatment.Designed for control of even chronic scalp conditions
Stated by brandCan’t be confirmed from label.Helps prevent recurrence of scalp itching and flaking associated with Psoriasis, Seborrheic Dermatitis and Dandruff
Stated by brandSoothing, not an active treatment.Fragrance and dye-free
Stated by brandCan’t be confirmed from label.PABA free
Stated by brandCan’t be confirmed from label.
Defunk
Neutralizes odors, removes product build-up, and soothes an itchy scalp
Potential conflictToo gentle for real build-up.
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.
Both praised for how gentle it is.
DHS Tar Shampoo
Repeat buyers who have used the product for years say it leaves hair feeling soft despite being a medicated, tar-based formula.
long-time repeat customersSeveral long-time users, including some directed by a doctor after trying prescription options, say it clears stubborn scalp itching and flaking within about a week when other treatments had not worked.
OTC/Rx tar-shampoo users with chronic scalp conditionsA reviewer who switched after his longtime tar shampoo (Neutrogena T/Gel) was discontinued calls this a solid direct replacement, though he would like it offered in larger bottle sizes.
shopper replacing a discontinued tar shampooDefunk
Effective as a scalp odor neutralizer and refresh spray between wash days
Used as a liquid alternative to dry shampoo powder for refreshing and retwisting hair between washes
textured/twist-out hair routinesReviewers with dermatitis/itchy scalp report it soothes itch that prescriptions alone did not fix
reviewers with dermatitis or sensitive/itchy scalpScent is a frequently repeated praise point
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.
$1.92/oz vs $1.92/oz — within about the same cost per ounce.
Every mark sits on one distribution because these are compared against the same set: 817 shampoos 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.
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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