Table 1.

Total Potential Formaldehyde Content by GC/MS from “In-Use” Patient Supplied Products Associated with Formaldehyde Allergic Contact Dermatitis

	Formaldehyde (μg/g) ± SD	Density2 (g/L)	Formaldehyde (mg/L)
Shampoo A	117.0 ± 2.2	1.006	117.7
Shampoo B	117.0 ± 17.1	0.986	115.4
Body Wash A	21.7 ± 2.3	1.004	21.8
Fabric Softener	16.8 ± 1.3	1.009	17.0
Moisturizing Cream A	Not detected or N.D.
Mosquito Insect Itch Spray	5.4 ± 0.2	0.849	4.6
2.5% Hydro cortisone Cream A	11.7 ± 2.5
2.5% Hydro cortisone Cream B	24.1
Sunscreen A1	269.4
Moisturizing Cream B	24.4

All are from duplicate or triplicate GC/MS measures except for the last 3 where only sufficient material was available for a single determination. All results were adjusted for recovery of labeled formaldehyde (ion 198 count from standard vs. addition to product) from the preparation. Recoveries ranged from essentially 100% to 50% (the sunscreen had low recovery).

¹Product was received in a desiccated state by the laboratory possibly causing an over estimation (on a per mass basis) of that for the product at the time of use.

²Densities were determined only on liquid products to allow for conversion from formaldehyde mass/product mass to formaldehyde mass/ product volume.