Is gk shampoo profitable to sell on Amazon United States?

The niche generates $60K/yr across 20 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +7.5%. Flapen's verdict: Skip it (47/100).

How competitive is the gk shampoo niche?

14 brands and 63 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in gk shampoo?

Top complaints mined from reviews: Smell, Moist/Dry, Value For Money. The return rate is 0.5%.

When does demand for gk shampoo peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the gk shampoo niche?

Listings span $9.68–$42.55; the average listing price is $23.97 (sweet spot $15–$100). The average incumbent carries 7,390 reviews — the moat a new listing must climb.

gk shampoo

Skip it

A small market ($60K/yr) — this niche doesn't clear our bar today.

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Avg price

Incredible$23.97

avg listing price — sweet spot $15–$100

Price range

Great$9.68–$42.55

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay61%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay81%

top-5 brand share — brands hold most of the demand

Growth

Okay+7.5%

90-day search growth — must beat 0% to launch

Conversion

Okay2.3%

search→purchase rate — share of searches ending in a sale

Review moat

Bad7,389.85

avg incumbent reviews — the moat a new listing must climb

Market size

Bad$60K

$60K/yr · 107K searches

According to Flapen's Amazon United States niche tracking, gk shampoo is a $60K/yr Amazon United States market (107K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 47/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

gk shampoo market data

Units sold / yr: 2K–3K; avg 100–250/product
Revenue / yr: $48K–$60K; units × avg price
Conversion rate: 2.3%
Avg BSR: #1,042
Page quality: 0%
Prime: 95%
Sponsored: 65%
Out of stock: 2.7%
Avg brand age: 70 months
Avg seller age: 137 days

Competition & brand share

The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 falling

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

61%

Top 20: 100%

Open market

15%

KATIVA58%
BELLISSO10%
BINGO HAIR CARE5%
Herbal Essences4%
SOULSPA PURE4%
Ritual Botanico4%
Open — no brand owns it (8 brands, 15%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +7.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top gk shampoo search terms

shampoo sin sal para keratina24K/yr -3.8%1.7% conv.
champu sin sal para keratina18K/yr -18.3%0.9% conv.
kativa shampoo and conditioner12K/yr +17.4%4.3% conv.
champu sin sal para cabello con keratina14K/yr +50.5%1.4% conv.
shampoo sin sal para cabello con keratina11K/yr +107.0%1.1% conv.
salt and sulfate free shampoo4K/yr +109.4%0.7% conv.
shampoo para keratina sin sal y sulfato6K/yr +10.2%2.3% conv.
kativa shampoo5K/yr +1.9%3.7% conv.
shampoo kativa4K/yr +9.5%3.4% conv.
shampoo keratina sin sal4K/yr +18.5%1.6% conv.

All search terms

Top gk shampoo products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

KATIVA Keratin Shampoo and Conditioner Set Sulfate Free Formula for Damaged Dry and Dull Hair Nourishes Softens and Adds Shine 355 mL Each

KATIVA$27.034.3★334 rev

KATIVA Brazilian Post Straightening Treatment Kit Shampoo Conditioner & Mask Keraliss Complex with Vegetal Keratin & Hyaluronic Acid Helps Prolong Straightening up to 18 Weeks

KATIVA$28.444.2★7,079 rev

Keratin Shampoo and Conditioner Set - Sulfate Free and Paraben Free - Salon Thickening Treatment for Dry Damaged Curly Frizzy Straight or Color Treated Hair - Anti Frizz Formula for Women and Men

BELLISSO$23.974.3★46,563 rev

Kativa Post-Straightening Hair Care Kit Salt-Free Shampoo & Conditioner with Vegetal Keratin & Hyaluronic Acid Helps Prolong Straightening up to 18 Weeks* - 7.6 Fl Oz Each

KATIVA$21.254.4★4,501 rev

Moroccan Argan Oil Shampoo and Conditioner Set - Sulfate Free Anti Frizz Hydrating Care for Women - Deep Moisturizing Treatment for Color Keratin Treated Curly Damaged and Dry Hair

BINGO HAIR CARE$24.114.4★13,702 rev

Newest

by launch date

Post Straightening Shampoo

KATIVA$20.06359 rev

5mo ago

Keratin Shampoo and Conditioner Set 16 fl oz Each - Strengthening & Smoothing Care for Dry Damaged Frizzy or Keratin-Treated Hair - Color Protecting - Champu Cabello con Keratina - Nexon Botanics

Nexon Botanics$19.7685 rev

5mo ago

Kareol Brazilian Keratin Post Straightening Kit Sulfate-Free Shampoo and Conditioner Frizz Control Vegan Formula

Kareol$22.7233 rev

9mo ago

Ritual Botanico Shampoo Control Grasa de Romero y Eucalipto Natural Sin sal Sulfatos Silicon ni Dimeticona Control Total del Cuero Cabelludo Graso Ideal para Cabellos Maltratados y Alisados 400ml

Ritual Botanico$17.35223 rev

2y ago

Biotin Shampoo and Conditioner Set with Keratin - Sulfate-Free Advanced Anti-Thinning Hair Growth Shampoo and Conditioner Combo Repair Formula - with DHT Blockers for Men & Women - 16 fl oz each

SOULSPA PURE$26.272,462 rev

2y ago

What buyers say about gk shampoo

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall17%

“Excellent product”

Smell15%

“Excelente aroma”

Soft Feel15%

“keeps my hair soft”

Value For Money6%

“Great value”

Suitability Straight Hair5%

“Hair look natyraly nice”

Moist/Dry5%

“doesn't dry it out”

Hair Growth4%

“Excellent for hair”

Hair Styling4%

“This hair care set offers great value for money”

Cleansing3%

“They seem to be good for cleansing”

Brightness/Shine/Glow2%

“High Shine”

What buyers complain about

Smell20%

“Bad smell”

Moist/Dry10%

“Dry”

Value For Money7%

“Too much money”

Hair Related6%

“my hair has NEVER been this soft”

Damage/Burn Hair4%

“For damage hair”

Advertised Vs Actual Product4%

“Misleading”

Functionality-Overall4%

“Doesn't work”

Suitability Short Hair4%

“was not the best for my hair”

Size-Overall3%

“smaller than expected”

Allergies2%

“the allergic reaction I got from this is horrible”

Top return reasons

Leak-Proof24%

Smell12%

Size-Overall8%

Advertised Vs Actual Product8%

Suitability Short Hair7%

Moist/Dry6%

Value For Money5%