Is liquid pen profitable to sell on Amazon United States?

The niche generates $124K/yr across 21 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is -17.1%. Flapen's verdict: Skip it (44/100).

How competitive is the liquid pen niche?

7 brands and 19 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in liquid pen?

Top complaints mined from reviews: Smell, Value For Money, Durability. The return rate is 1.2%.

When does demand for liquid pen peak?

Demand peaks in Jan–Mar–Nov–Dec; the busiest month runs 7.2× the quietest.

What does it cost to enter the liquid pen niche?

Listings span $11.50–$28.90; the average listing price is $19.02 (sweet spot $15–$100). The average incumbent carries 1,971 reviews — the moat a new listing must climb.

Liquid Pen

Skip it

Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.

Returns

Great1.2%

return rate — above 5% kills the launch gate

Avg price

Great$19.02

avg listing price — sweet spot $15–$100

Price range

Great$11.50–$28.90

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

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Review moat

Okay1,971.24

avg incumbent reviews — the moat a new listing must climb

Competition

Okay61%

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

Conversion

Okay2.5%

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

Market size

Okay$124K

$124K/yr · 263K searches

Growth

Bad-17.1%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Is liquid pen profitable on Amazon?

According to Flapen's Amazon United States niche tracking, liquid pen is a $124K/yr Amazon United States market (263K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jan–Mar–Nov–Dec. Verdict: Skip it — 44/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

liquid pen market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 6K–8K; avg 250–500/product
Revenue / yr: $114K–$152K; units × avg price
Conversion rate: 2.5%
Avg BSR: #903
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 3.5%
Avg brand age: 39 months
Avg seller age: 151 days

Competition: brands, sellers & click share

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

Brands

7 falling

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

61%

Top 20: 99%

Open market

Lifelines69%
Mindscope18%
Abhay4%
YoYa Toys3%
YUE MOTION2%
Special Supplies2%
Open — no brand owns it (1 brand, 1%)

liquid pen demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.1% search growth over the last 90 days.

Peak months: Jan, Mar, Nov, Dec · busiest ÷ quietest = 7.2×

Open Trend

Top liquid pen search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

bubble pen14K/yr +823.7%1.4% conv.
lava pens51K/yr -35.5%2.0% conv.
lifelines pen diffuser32K/yr -32.0%2.1% conv.
lifelines pens14K/yr +9.6%2.5% conv.
lifelines pen29K/yr -46.1%1.9% conv.
lava lamp pens13K/yr -28.3%2.1% conv.
lava pen21K/yr -43.4%1.0% conv.
lifeline pens10K/yr -11.2%1.8% conv.
liquid pens9K/yr -2.3%0.3% conv.
lifelines scented lava pens12K/yr -44.1%4.3% conv.

All search terms

Top liquid pen products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Top sellers

by 90-day click share

Lifelines Scented Lava Gel Pen Set 5-Pack (Brights) - 0.5mm Colored Gel Pens Infused with Scented Essential Oil Blends & Mesmerizing Lava - School Supplies for College Kids & Adults

Lifelines$18.634.2★1,276 rev

Lifelines Scented Lava Gel Pen Set 10-Pack (Multi-Color) - 0.5mm Colored Gel Pens Infused with Scented Essential Oil Blends & Mesmerizing Lava - School Supplies for College Kids & Adults

Lifelines$28.854.2★1,276 rev

Mindscope BubbleFX LED Light Up Bubble Sculptor Pen (Blue/Orange)

Mindscope$24.993.6★12 rev

Lifelines Pen Diffuser Set Natures Escape 3-Pack 1mm Black Ballpoint Pens with Scented Essential Oil Blends Aromatherapy Diffuser & Sensory Immersion Diffuse Aroma As You Write

Lifelines$28.904.4★2,108 rev

Lifelines Pen Diffuser Crisp Mountain Air - 1mm Black Ballpoint Pen with Scented Essential Oil Blends Aromatherapy Diffuser & Sensory Immersion Diffuse Aroma As You Write

Lifelines$12.614.4★2,108 rev

Newest

by launch date

Mindscope BubbleFX LED Light Up Bubble Sculptor Pen (Blue/Orange)

Mindscope$24.9912 rev

4mo ago

Mindscope BubbleFX LED Light Up Bubble Sculptor Pen (Green/Yellow)

Mindscope$24.9312 rev

4mo ago

Smens Scented Glitter Gel Pens 12 Pack Colored Gel Pens with Sparkly Ink & Gourmet Scented Grips Fun School Supplies Cute Journaling Pens & Creative Stationery Gift Set

Scentco$11.9411,717 rev

10mo ago

Lifelines Scented Lava Gel Pen Set 10-Pack (Multi-Color) - 0.5mm Colored Gel Pens Infused with Scented Essential Oil Blends & Mesmerizing Lava - School Supplies for College Kids & Adults

Lifelines$28.851,276 rev

11mo ago

Lifelines Writing Wellness Gift Set - Scented Writing Set Includes Finger Maze Sensory Journal 3 Scented Stacking Highlighters & 2 Lava Gel Pens - Aromatherapy & Sensory Immersion

Lifelines$19.86362 rev

11mo ago

What reviews say buyers love and hate about liquid pen

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

What buyers love

Smell32%

“the smell is beautiful”

Fun/Entertainment Experience17%

“you have a great toy”

Color9%

“the colors are very bright”

Writing Experience7%

“Writes nice”

Quality-Overall4%

“Overall, this set is awesome, especially if you journal or take notes”

Value For Money3%

“value for the money”

Gifting Purpose3%

“My friend absolutely loved this gift I got her for Christmas”

Durability1%

“It is a very durable product”

Pen/Pencil Quality1%

“Glitter gel pens are great”

Advertised Vs Actual Product1%

“as advertised,”

What buyers complain about

Smell28%

“Weird smell”

Value For Money9%

“they were more expensive in the store so I was able to get them bit cheaper here”

Durability5%

“Don't last”

Functionality-Overall5%

“it stops working randomly”

Quality-Overall5%

“Pens were not good quality”

Writing Experience4%

“Pens dont write”

Leak-Proof4%

“leaked everywhere”

Dry/Empty Ink3%

“Two out of the three pens ink was dry”

Ink Leakage3%

“BUT the ink went out on each in about one day”

Color3%

“The red and orange dont work well”

Top return reasons

Smell37%

Leak-Proof12%

Functionality-Overall8%

Advertised Vs Actual Product7%

Ink Refill5%

Size-Overall5%