Which KPV fill has the lowest price per mg at Webb Peptides?

KPV 10 mg, at $0.65 per mg ($65.00 for 100 mg).

How much does the largest KPV box hold?

KPV 10 mg: 10 × 10 mg vials make 100 mg, for $65.00.

Does a bigger KPV fill always cost less per mg?

At Webb Peptides, yes for every step of this ladder: each larger fill works out lower per mg than the one below it.

Price per mg

KPV price per mg

Webb Peptides lists KPV in 2 vial fills, from 5 mg to 10 mg, each sold by the box of 10 vials. Per mg, the KPV 10 mg box is the lowest at $0.65 per mg. Every figure below comes from the live listings.

KPV fills compared
Listing	Fill	Box contents	Box price	Per vial	Per mg	Against the lowest
KPV 5 mg	5 mg	50 mg	$41.00	$4.10	$0.82	+26%
KPV 10 mg	10 mg	100 mg	$65.00	$6.50	$0.65	lowest

Step by step up the ladder

5 mg → 10 mg: 2 times the contents for $24.00 more a box; per mg the price falls by 21%.

With shipping added

Shipping is $90.00 for up to 4 boxes in one order, so its share of each box depends on the order size. Per mg including that share:

Listing	1 box alone	4 boxes in the order
KPV 5 mg	$2.62	$1.27
KPV 10 mg	$1.55	$0.88

The arithmetic is in the note on landed cost.

Answers from these figures

Which KPV fill has the lowest price per mg at Webb Peptides?: KPV 10 mg, at $0.65 per mg ($65.00 for 100 mg).
How much does the largest KPV box hold?: KPV 10 mg: 10 × 10 mg vials make 100 mg, for $65.00.
Does a bigger KPV fill always cost less per mg?: At Webb Peptides, yes for every step of this ladder: each larger fill works out lower per mg than the one below it.

Webb Peptides supplies materials for in-vitro laboratory research only, not for human or veterinary use and not for diagnostic or therapeutic use. Webb sells nothing intended to be consumed.