Amazon hair dupes

−84%on price

The same shape of tool: a 1¼-inch ceramic curling iron with a barrel made extra long, 7.5 inches on the Conair, so each pass wraps a wider section, and heat you set yourself.

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−83%on price

The same no-dial idea: ceramic floating plates that heat to one set temperature, with no setting to get wrong, and dual voltage for travel.

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−68%on price

The same tool in the same size: a 2.4-inch oval brush head with its own blower, pins and bristles that dries and shapes a section in one pass.

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−64%on price

Built on the Supersonic's idea: a 110,000rpm brushless motor in the handle, magnetic nozzles, and a sensor that reads the air temperature and pulls the heat back, 100 times a second here against the Dyson's 40-plus.

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−58%on price

Both are 1.25-inch curling irons with an extended barrel for long hair and the back of the head, digital heat up to 430°F on the Bio Ionic and 450°F on the Hot Tools, and an auto shut-off.

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−56%on price

Also uses Coanda-style air curling.

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−50%on price

The same wet-to-dry idea: two arms blow heated air through the hair as they straighten it, and the airflow drops between passes, as the Airstrait's does.

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−96%per oz

Same silicone shine oil: a volatile carrier (isohexadecane and isoparaffin in Olaplex, cyclopentasiloxane in Garnier) evaporates and leaves dimethicone or dimethiconol to smooth the cuticle, with a little plant oil.

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−95%per oz

Built the same way: a water-free spray whose fast-evaporating carriers leave a thin silicone film for shine and frizz control, softened with an ester.

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−93%per oz

Close to the same cream, from the same group: cetearyl alcohol, amodimethicone and cetyl esters lead both labels, with behentrimonium chloride, argan oil, trideceth-6, isopropyl alcohol and cetrimonium chloride on each.

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−92%per oz

Same conditioning base from the same group: cetearyl alcohol, behentrimonium chloride, dimethicone, amodimethicone, glycerin and isopropyl alcohol.

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−91%per oz

Both rebuild broken keratin bonds with a low-molecular-weight peptide — K18Peptide in one, Tripeptide-132 in the other — and both are aimed at bleach, color and heat damage.

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−91%per oz

Close to the same mask, from the same group: cetearyl alcohol, behentrimonium chloride, amodimethicone, cetyl esters, isopropyl alcohol and trideceth-6 lead both labels.

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−88%per oz

Same camellia oil (Camellia oleifera seed oil) and dimethiconol over a fast-evaporating base, used the same way: one or two pumps on damp or dry ends.

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−84%per oz

Same argan-and-silicone base, same use on damp mid-lengths before drying, and the same shine without weight on fine hair.

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−82%per oz

Same do-everything leave-in spray: detangles, smooths frizz on damp or dry hair and protects from hot tools up to 450°F.

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−81%per oz

Close to the same formula, both from L'Oréal's labs: water, dimethicone, cetearyl alcohol, amodimethicone, polyquaternium-37 and dimethiconol lead both labels, with the same trideceth and steareth emulsifiers.

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−81%per oz

Built the same way: a clear, water-free serum whose fast-evaporating carriers leave a film of dimethiconol on the hair for shine and frizz control.

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−80%per oz

Same job and same routine slot: citric acid bond builder worked through damp hair before shampoo, left 10 minutes.

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−58%per oz

Both are spray-in leave-ins on the same conditioning base, cetearyl alcohol with a behentrimonium conditioner and a silicone, plus panthenol and a protein, sprayed on wet hair to detangle and prep for heat.

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−56%per oz

Same conditioning base from the same group: cetearyl alcohol with behentrimonium chloride, isopropyl alcohol and coconut oil, rinsed out after a few minutes.

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−47%per oz

One spray under two names, both from L'Oréal: all of Biolage's first ten ingredients are among L'Oréal's first ten, the first six in the same order, water, coconut oil, amodimethicone, PPG-5-ceteth-10 phosphate, polyquaternium-37 and phenoxyethanol, and 26 of the 31 on L'Oréal's label are on Biolage's.

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−96%per oz

The same conditioning system: cetearyl alcohol with two cationic conditioners, behentrimonium chloride and stearamidopropyl dimethylamine, plus a silicone for slip, as on the Oribe label.

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−95%per oz

The same conditioner base from the same group, cetearyl alcohol with behentrimonium and cetrimonium chloride and amodimethicone, and both lists end on lactic acid and glycolic acid, the acid each line is named after.

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−94%per oz

Built on the same system from the same group: sodium laureth sulfate, cocamidopropyl betaine and salt with hexylene glycol, dimethicone, amodimethicone, carbomer, salicylic acid, a guar conditioner and trideceth-10.

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−83%per oz

Nearly the same formula from the same group: water, sodium laureth sulfate, coco-betaine, salt, glycol distearate, dimethicone, fragrance, sodium benzoate, hexylene glycol, cocamide MIPA, salicylic acid and carbomer, in that order on both, then a guar conditioner.

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−82%per oz

Same conditioner build: behentrimonium chloride with cetyl and cetearyl alcohol to detangle, and argan oil in both, in small amounts.

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−80%per oz

Same base, from the same parent company: sodium laureth sulfate with cocamidopropyl betaine and salt, a classic lathering shampoo for long hair that splits at the ends.

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−79%per oz

The first five ingredients match in order, water, cetearyl alcohol, stearamidopropyl dimethylamine, isopropyl myristate and cetyl esters, with sunflower seed oil close behind on both, and 12 of Biolage's 21 are on L'Oréal's label.

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−79%per oz

Same lathering system from the same group: sodium laureth and lauryl sulfate with salt, glycol distearate, sodium benzoate, salicylic acid and a guar conditioner.

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−75%per oz

Nearly the same cleansing system, from Pureology's own parent company: sodium cocoyl isethionate, disodium laureth sulfosuccinate, sodium lauryl sulfoacetate and sodium lauroyl sarcosinate, with decyl glucoside, polyquaternium-10 and amodimethicone.

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−75%per oz

Both are softening shampoos with a pearly glycol distearate base, argan oil and a conditioning polymer: the shampoo half of the Redken All Soft and OGX argan pair already on the site.

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−75%per oz

The same conditioner base, both from L'Oréal: water, cetearyl alcohol, amodimethicone, behentrimonium chloride and cetyl esters open both lists in that order, and nine of Pureology's first ten ingredients are among L'Oréal's first ten.

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−75%per oz

Both are cream conditioners for colored hair on the same base, cetearyl alcohol with behentrimonium chloride.

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−69%per oz

The same formula in another bottle, as far as the labels show: the first seventeen ingredients match in order, from sodium laureth and lauryl sulfate through cocamide MEA, dimethicone, carbomer and salicylic acid, and both list sodium hyaluronate and amodimethicone.

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−69%per oz

The same conditioner as far as the labels go, both from L'Oréal's labs: water, cetearyl alcohol, dimethicone, glycerin, behentrimonium chloride, fragrance, amodimethicone, cetrimonium chloride, isopropyl alcohol, lactic acid and sodium hyaluronate appear in the same order on both.

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−66%per oz

The first nine ingredients are the same, in the same order: water, cetearyl alcohol, behentrimonium chloride, amodimethicone, fragrance, isopropyl alcohol, phenoxyethanol, benzoic acid and trideceth-6, and 14 of the 17 on L'Oréal's label are on Pureology's.

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−63%per oz

Built the same way: cetearyl alcohol with behentrimonium chloride and cetyl esters, the classic detangling base, plus silicone for slip.

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−63%per oz

Same job: a sulfate-free purple shampoo whose violet dye cancels the yellow and orange in blonde, gray and lightened hair.

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−62%per oz

Same job in the routine: a sulfate-free shampoo that follows a bond pre-treatment and keeps bleached or heat-damaged hair from sliding back between treatments.

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−61%per oz

One base, both from L'Oréal: the first nine ingredients match in order, the mild sulfate-free blend of coco-betaine, disodium laureth sulfosuccinate, sodium cocoyl isethionate, sodium lauryl sulfoacetate and sodium lauroyl sarcosinate with glycol distearate, salt and decyl glucoside, and 30 of the 35 on L'Oréal's label are on Redken's.

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−82%per oz

Same spray: butane, propane and alcohol with aluminum starch octenylsuccinate to absorb oil and an ester to keep it from feeling chalky.

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−77%per oz

Built the same way: isobutane and propane propellants, denatured alcohol and a starch to soak up oil (rice starch in Living Proof, aluminum starch octenylsuccinate in Dove), with silica in both.

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−75%per oz

Same trick for dark hair: an aerosol of HFC-152a and butane with alcohol, a starch to absorb oil and iron-oxide pigments so no gray cast shows at the roots.

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−73%per oz

The same aerosol almost word for word: the first four ingredients match (HFC-152a and dimethyl ether as propellants, denatured alcohol, VP/VA copolymer for hold), and both also carry acetyl triethyl citrate and PEG/PPG-17/18 dimethicone.

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−73%per oz

Same basic spray: butane and propane with alcohol and a starch that soaks up oil at the roots and brushes out.

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−72%per oz

Same salt water in almost the same order: water, magnesium sulfate for grit, kelp extract and isoceteth-20 lead both lists.

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−71%per oz

Built the same way: butane and propane with alcohol and rice starch, which absorbs oil at the roots and dries clear.

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−67%per oz

The same aerosol build: HFC-152a and butane propellants, denatured alcohol, VP/VA copolymer for hold and zeolite to soak up oil at the root, with glycerin in both.

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−58%per oz

Nearly the same can: isobutane propellant, the same modified rice starch (dimethylimidazolidinone rice starch), alcohol and aluminum starch octenylsuccinate, with panthenol, wheat protein, acrylates copolymer, magnesium carbonate and VP/VA copolymer on both labels.

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−57%per oz

The polymer that does Dream Coat's work is on this label too: polysilicone-29, which heat sets into a film against humidity, in a water, glycerin and dipropylene glycol spray, and L'Oréal owns both brands.

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