USP-S | Serum (Field-Tested)
USP-S | Serum (Field-Tested)
Best offer
Field-Tested 0.150801345705990
$62.30 -30%
Steam: $89.15Filters
Delivery time
Stickers
[]
Charm
[]
Price
53 offers
FT
0.226679861545560
100%
rain (Champion) | Antwerp 2022
![rain (Champion) | Antwerp 2022]()
rain (Champion) | Antwerp 2022
100%
$0.01
Instant Your purchase will be delivered instantly.
$62.30
FT
0.216874778270720
74%
NEO | Cluj-Napoca 2015
54%
byali | Cluj-Napoca 2015
![NEO | Cluj-Napoca 2015]()
NEO | Cluj-Napoca 2015
74%
$2.85
![byali | Cluj-Napoca 2015]()
byali | Cluj-Napoca 2015
54%
$3.44
Total: $6.29
Instant Your purchase will be delivered instantly.
$62.30
FT
0.230428159236910
Instant Your purchase will be delivered instantly.
$62.30
FT
0.184490412473680
Instant Your purchase will be delivered instantly.
$62.30
FT
0.234708666801450
Instant Your purchase will be delivered instantly.
$62.30
FT
0.235734224319460
Instant Your purchase will be delivered instantly.
$62.30
FT
0.220977947115900
Instant Your purchase will be delivered instantly.
$62.30
FT
0.175877004861830
100%
Farlig (Holo) | Antwerp 2022
100%
Boom | 2020 RMR
![Farlig (Holo) | Antwerp 2022]()
Farlig (Holo) | Antwerp 2022
100%
$0.39
![Boom | 2020 RMR]()
Boom | 2020 RMR
100%
-
Total: $0.39
Instant Your purchase will be delivered instantly.
$62.30
FT
0.194777846336360
Instant Your purchase will be delivered instantly.
$62.30
FT
0.151327252388000
Instant Your purchase will be delivered instantly.
$62.30
FT
0.163051158189770
Instant Your purchase will be delivered instantly.
$62.30
FT
0.189062312245370
100%
High Heat
100%
fame (Champion) | Rio 2022
![High Heat]()
High Heat
100%
$0.34
![fame (Champion) | Rio 2022]()
fame (Champion) | Rio 2022
100%
$0.01
Total: $0.35
Instant Your purchase will be delivered instantly.
$62.30
FT
0.189650475978850
Instant Your purchase will be delivered instantly.
$62.30
FT
0.177009135484700
Instant Your purchase will be delivered instantly.
$62.30
FT
0.218982219696040
Instant Your purchase will be delivered instantly.
$62.30
FT
0.153080090880390
Instant Your purchase will be delivered instantly.
$62.30
FT
0.234253734350200
100%
FURIA (Glitter) | Paris 2023
![FURIA (Glitter) | Paris 2023]()
FURIA (Glitter) | Paris 2023
100%
$0.06
Instant Your purchase will be delivered instantly.
$62.30
FT
0.241773784160610
Instant Your purchase will be delivered instantly.
$62.30
FT
0.150801345705990
Instant Your purchase will be delivered instantly.
$62.30
FT
0.197317183017730
Instant Your purchase will be delivered instantly.
$62.30
FT
0.161921158432960
Instant Your purchase will be delivered instantly.
$62.30
FT
0.212097138166430
Instant Your purchase will be delivered instantly.
$62.30
FT
0.209042042493820
100%
Terrorist-Tech
![Terrorist-Tech]()
Terrorist-Tech
100%
$0.08
Instant Your purchase will be delivered instantly.
$62.30
FT
0.193705201148990
100%
BLAST.tv | Paris 2023
![BLAST.tv | Paris 2023]()
BLAST.tv | Paris 2023
100%
$0.01
Instant Your purchase will be delivered instantly.
$62.30
FT
0.159595996141430
Instant Your purchase will be delivered instantly.
$62.30
FT
0.217402935028080
Instant Your purchase will be delivered instantly.
$62.30
FT
0.177493542432790
Instant Your purchase will be delivered instantly.
$62.30
FT
0.236841589212420
Instant Your purchase will be delivered instantly.
$62.30
FT
0.241174638271330
Instant Your purchase will be delivered instantly.
$62.30
FT
0.186137855052950
100%
Eco Rush
![Eco Rush]()
Eco Rush
100%
$0.18
Instant Your purchase will be delivered instantly.
$62.30
FT
0.167314767837520
Big Kev
![Big Kev]()
Big Kev
$0.16
Instant Your purchase will be delivered instantly.
$62.30
FT
0.221695035696030
0%
ropz (Champion) | Austin 2025
0%
Wicadia (Foil) | Austin 2025
![ropz (Champion) | Austin 2025]()
ropz (Champion) | Austin 2025
0%
$0.05
![Wicadia (Foil) | Austin 2025]()
Wicadia (Foil) | Austin 2025
0%
$0.01
Total: $0.06
Instant Your purchase will be delivered instantly.
$62.30
FT
0.171702325344090
Instant Your purchase will be delivered instantly.
$62.30
FT
0.237685203552250
Instant Your purchase will be delivered instantly.
$62.30
FT
0.176238760352130
Instant Your purchase will be delivered instantly.
$62.30
FT
0.229551613330840
Instant Your purchase will be delivered instantly.
$62.30
FT
0.237891510128970
Instant Your purchase will be delivered instantly.
$62.30
FT
0.193533167243000
55%
Natus Vincere (Glitter) | Copenhagen 2024
56%
Natus Vincere | Copenhagen 2024
49%
Natus Vincere | Copenhagen 2024
47%
Natus Vincere | Copenhagen 2024
48%
Natus Vincere | Copenhagen 2024
![Natus Vincere (Glitter) | Copenhagen 2024]()
Natus Vincere (Glitter) | Copenhagen 2024
55%
$0.4
![Natus Vincere | Copenhagen 2024]()
Natus Vincere | Copenhagen 2024
56%
$0.05
![Natus Vincere | Copenhagen 2024]()
Natus Vincere | Copenhagen 2024
49%
$0.05
![Natus Vincere | Copenhagen 2024]()
Natus Vincere | Copenhagen 2024
47%
$0.05
![Natus Vincere | Copenhagen 2024]()
Natus Vincere | Copenhagen 2024
48%
$0.05
Total: $0.60
Instant Your purchase will be delivered instantly.
$62.30
FT
0.203245908021930
Instant Your purchase will be delivered instantly.
$62.30
FT
0.156796038150790
Instant Your purchase will be delivered instantly.
$62.30
FT
0.179406017065050
Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.
$64.17
FT
0.221695035696030
0%
ropz (Champion) | Austin 2025
0%
Wicadia (Foil) | Austin 2025
![ropz (Champion) | Austin 2025]()
ropz (Champion) | Austin 2025
0%
$0.05
![Wicadia (Foil) | Austin 2025]()
Wicadia (Foil) | Austin 2025
0%
$0.01
Total: $0.06
Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.
$64.21
FT
0.197620093822480
100%
paiN Gaming | Paris 2023
100%
paiN Gaming | Paris 2023
100%
paiN Gaming | Paris 2023
100%
paiN Gaming | Paris 2023
![paiN Gaming | Paris 2023]()
paiN Gaming | Paris 2023
100%
$0.01
![paiN Gaming | Paris 2023]()
paiN Gaming | Paris 2023
100%
$0.01
![paiN Gaming | Paris 2023]()
paiN Gaming | Paris 2023
100%
$0.01
![paiN Gaming | Paris 2023]()
paiN Gaming | Paris 2023
100%
$0.01
Total: $0.04
Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.
$65.25
FT
0.175311326980590
Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.
$69.46
FT
0.249870002269740
Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.
$69.46
FT
0.230374574661250
Up to 12H Delivery may take up to 12 hours. You can cancel if the seller doesn't create the trade within 30 minutes.
$70.00
FT
0.190755024552350
Instant Your purchase will be delivered instantly.
$74.85
FT
0.201099947094920
100%
Headshot Guarantee
100%
Don't Worry, I'm Pro
![Headshot Guarantee]()
Headshot Guarantee
100%
$0.68
![Don't Worry, I'm Pro]()
Don't Worry, I'm Pro
100%
$0.57
Total: $1.25
Instant Your purchase will be delivered instantly.
$74.85
FT
0.188622385263440
Instant Your purchase will be delivered instantly.
$74.85
FT
0.179114222526550
100%
Headshot Guarantee
100%
Rekt (Holo)
100%
FaZe Clan (Holo) | Boston 2018
100%
Small Arms
0%
FaZe Clan | Paris 2023
Lil' Zen
![Headshot Guarantee]()
Headshot Guarantee
100%
$0.68
![Rekt (Holo)]()
Rekt (Holo)
100%
$1.16
![FaZe Clan (Holo) | Boston 2018]()
FaZe Clan (Holo) | Boston 2018
100%
$61.27
![Small Arms]()
Small Arms
100%
$0.21
![FaZe Clan | Paris 2023]()
FaZe Clan | Paris 2023
0%
$0.01
![Lil' Zen]()
Lil' Zen
$0.2
Total: $63.53
Instant Your purchase will be delivered instantly.
$76.20
USP-S | Serum (Field-Tested)
The USP-S | Serum (Field-Tested) is a Classified pistol skin with a bold red digital pattern over a chrome base, here in the most worn condition the finish offers. It's the most affordable way into an eye-catching red USP-S, with light wear the deep color still partly disguises.
Design
Designed by Valve, Serum is all about one saturated red. The look comes from metallic paints of varying reflectivity applied as a digital pattern over a chrome base coat — the reason the slide shifts between rich crimson and a brighter metallic flash depending on how it catches the light.
USP-S | Serum (Field-Tested) Float and Wear
Field-Tested picks up light scratching along the slide edges, but the deep red and chrome base absorb it well, so the color stays the dominant impression. Because Serum is float-capped at 0.25, Field-Tested is the most worn grade it reaches — there's no Well-Worn or Battle-Scarred, so even the roughest Serum you can buy never shows the heavy battering a full-range skin would at its worst.
USP-S | Serum Rarity
Rarity: Classified, the pink grade. It ranks directly below Covert as the second-highest of the standard weapon tiers, and it's a genuinely uncommon grade to unbox.
USP-S | Serum Case and Collection
Serum sits in The Arms Deal 2 Collection and is unboxed from the CS:GO Weapon Case 2, released together with The Arms Deal 2 update on November 8, 2013. As a group the Classified tier drops around 3.2% of the time (the rate is shared across the tier's skins), and since this old case is out of the active drop pool, supply is fixed — the market, not unboxing, is where most copies now come from.
USP-S | Serum Patterns
Because the red digital design and chrome base are placed the same way on every copy, the finish has no random pattern variation — nothing like a paint seed or "blue gem" to track down. Copies differ from one another only by wear and float.
StatTrak & Souvenir
You can also find a StatTrak™ Serum from the CS:GO Weapon Case 2, which brings a confirmed-kill counter along; it's rarer and more expensive than the standard drop, and the counter is permanent, following the item through every trade or sale. There's no Souvenir variant — Souvenir weapons only come from Major-tournament packages, and this case was never a Major drop.
USP-S | Serum Price
Field-Tested is the cheapest grade of the skin, the entry-level way to run the design for players who care more about the loud red than a spotless slide. If you want this striking USP-S for as little as possible, this is the way in — still a premium finish, just the friendliest price in its ladder. Available to buy on Skin.Land with instant delivery and no hidden fees.
FAQ
Does the Field-Tested Serum look beat up?
Not really. There's visible edge wear on close inspection, but the deep red and chrome base soak up scratches, so the skin still reads bold and colorful in-game. Field-Tested is about accepting a little honest wear for the lowest price, not sacrificing the look.
Why doesn't the Field-Tested Serum reach heavier wear grades?
The finish is float-capped at 0.25 rather than the usual 1.0, so the game can't roll it past Field-Tested. That's why there's no Well-Worn or Battle-Scarred Serum — Field-Tested is as worn as the skin ever gets, and it stays milder than the worst grade of a full-range finish.
Is Field-Tested worth buying over Minimal Wear?
Only if price leads your decision. Minimal Wear looks a step cleaner for a modest bump in cost, so many buyers prefer it. Field-Tested makes sense when you want the bold red design as cheaply as possible and don't mind a touch of visible edge wear.
