Is kerastase serum profitable to sell on Amazon United States?

The niche generates $2.4M/yr across 10 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -3.7%. Flapen's verdict: Worth a look (50/100).

How competitive is the kerastase serum niche?

3 brands and 4 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in kerastase serum?

Top complaints mined from reviews: Value For Money, Smell, Hair Related. The return rate is 0.9%.

When does demand for kerastase serum peak?

Demand is steady year-round — the busiest month runs 1.9× the quietest.

What does it cost to enter the kerastase serum niche?

Listings span $20.87–$76.69; the average listing price is $46.88 (sweet spot $15–$100). The average incumbent carries 3,557 reviews — the moat a new listing must climb.

kerastase serum

Worth a look

Shows a $2.4M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size

Incredible$2.4M

$2.4M/yr · 933K searches

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Price range

Incredible$20.87–$76.69

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

Avg price

Great$46.88

avg listing price — sweet spot $15–$100

Conversion

Good5.6%

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay3,557.3

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-3.7%

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

Competition

Bad82%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, kerastase serum is a $2.4M/yr Amazon United States market (933K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.

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

kerastase serum market data

Units sold / yr: 50K–60K; avg 5,000–6,000/product
Revenue / yr: $2.3M–$2.8M; units × avg price
Conversion rate: 5.6%
Avg BSR: #47
Page quality: 0%
Prime: 100%
Sponsored: 60%
Out of stock: 2.6%
Avg brand age: 55 months
Avg seller age: 137 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

KÉRASTASE92%
Amika5%
Wella Professionals2%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.7% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.9×

Open Trend

Top kerastase serum search terms

kerastase night serum hair323K/yr -2.3%7.4% conv.
kerastase serum158K/yr +19.0%3.6% conv.
kerastase hair serum88K/yr -22.2%4.1% conv.
overnight hair serum44K/yr -5.4%1.1% conv.
kerastase hair growth serum28K/yr +6.2%4.6% conv.
kerastase night serum50K/yr -21.3%6.5% conv.
amika dream routine overnight29K/yr -5.4%10.1% conv.
serum kerastase para cabello23K/yr -10.0%2.5% conv.
kerastase serum for hair22K/yr +6.2%2.5% conv.
night hair serum21K/yr -17.7%1.4% conv.

All search terms

Top kerastase serum 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 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine Anti-Frizz With Plant-Based Proteins

KÉRASTASE$58.504.6★9,312 rev

Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine With Plant-Based Proteins 1.01 Fl Oz Travel Size

KÉRASTASE$30.964.6★9,312 rev

Kerastase Genesis Hair Serum - Daily Strengthening Treatment for Weak Hair Silicone-Free Anti-Breakage Nourishes and Reinforces Hair Serum Fortifiant 1 Fl Oz

KÉRASTASE$32.894.5★2,345 rev

Kerastase Genesis Hair Serum - Prevents Hair Fall from Brushing Strengthens Weak Hair Enriched with Ginger & Caffeine 97% Less Breakage 3.04 Fl Oz

KÉRASTASE$62.974.5★2,345 rev

amika dream routine overnight hydrating hair mask | no rinse leave-in treatment for dry hair ultra-hydrating with hyaluronic acid for long-lasting moisture

Amika$32.334.6★334 rev

Newest

by launch date

Kerastase Magic Night Hair Serum Set with Genesis Anti-Hair Fall Serum and Nutritive 8H Overnight Serum Hair Care Gift Set to Strengthen Nourish and Reduce Break age 2-Piece Set

KÉRASTASE$76.6963 rev

3mo ago

KRASTASE Chronologiste Overnight Youth Serum Anti-Aging Night Serum Infused with Hyaluronic Acid & Abyssine Hydrates Plumps & Restores Shine 90ml

KÉRASTASE$64.44147 rev

4mo ago

Kerastase Genesis Hair Serum - Daily Strengthening Treatment for Weak Hair Silicone-Free Anti-Breakage Nourishes and Reinforces Hair Serum Fortifiant 1 Fl Oz

KÉRASTASE$32.892,345 rev

4mo ago

amika dream routine overnight hydrating hair mask | no rinse leave-in treatment for dry hair ultra-hydrating with hyaluronic acid for long-lasting moisture

Amika$32.33334 rev

1y ago

Kerastase Nutritive 8H Magic Night Serum - Overnight Treatment for Dry Hair Enhances Shine With Plant-Based Proteins 1.01 Fl Oz Travel Size

KÉRASTASE$30.969,312 rev

1y ago

What buyers say about kerastase serum

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

What buyers love

Smell22%

“The fragrance is lovely”

Soft Feel12%

“Leaves my hair soft”

Quality-Overall11%

“Excellent Product”

Hair Growth7%

“This product has really strengthened my hair”

Value For Money7%

“Its super affordable”

Moist/Dry5%

“Beautifully hydrating”

Suitability Straight Hair3%

“Its the best for the hair”

Brightness/Shine/Glow3%

“A perfect shine”

Oily/Greasy2%

“Its not too oily, smells heavenly without being overpowering and keeps my hair strong and healthy”

Hair Styling2%

“Makes my hair feel nice”

What buyers complain about

Value For Money21%

“Expensive”

Smell18%

“Awful scent”

Hair Related4%

“Did not work on my hair”

Functionality-Overall3%

“also possibly not effective”

Moist/Dry3%

“My hair has been dry and falling out”

Oily/Greasy3%

“makes your hair super oily”

Suitability Short Hair2%

“Broke my hair off”

Size-Overall1%

“The bottle itself is such larger than I thought”

Product Condition1%

“the product looked used”

Thickness1%

“has a bit of thickness to it”

Top return reasons

Smell21%

Functionality-Overall14%

Advertised Vs Actual Product9%

Value For Money8%

Product Condition7%

Suitability Short Hair6%

Size-Overall6%