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

Semax 10 mg, at $0.72 per mg ($72.00 for 100 mg).

How much does the largest Semax box hold?

Semax 10 mg: 10 × 10 mg vials make 100 mg, for $72.00.

Does a bigger Semax 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

Semax price per mg

Webb Peptides lists Semax in 2 vial fills, from 5 mg to 10 mg, each sold by the box of 10 vials. Per mg, the Semax 10 mg box is the lowest at $0.72 per mg. Every figure below comes from the live listings.

Semax fills compared
Listing	Fill	Box contents	Box price	Per vial	Per mg	Against the lowest
Semax 5 mg	5 mg	50 mg	$46.00	$4.60	$0.92	+28%
Semax 10 mg	10 mg	100 mg	$72.00	$7.20	$0.72	lowest

Step by step up the ladder

5 mg → 10 mg: 2 times the contents for $26.00 more a box; per mg the price falls by 22%.

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
Semax 5 mg	$2.72	$1.37
Semax 10 mg	$1.62	$0.94

The arithmetic is in the note on landed cost.

Answers from these figures

Which Semax fill has the lowest price per mg at Webb Peptides?: Semax 10 mg, at $0.72 per mg ($72.00 for 100 mg).
How much does the largest Semax box hold?: Semax 10 mg: 10 × 10 mg vials make 100 mg, for $72.00.
Does a bigger Semax 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.