Are all of the colors reactive under black light? If not, which ones?

Only the orange and especially yellow are reactive and highly so. The others don't reflect at all. Pink shows vague promise but, like blue, simply disappears into its surroundings. Interestingly, the green really absorbs a lot of UV and looks dark/black under the light.

How long do they last? And does the color run through the other side of the page where it can be distracting?

My yellow got damaged the first week. It picked up black from paper (aka I was highlighting over my writing) and it ended up always leaving black smudges whenever I used it. The blue and green don't have these issues, and have lasted two semesters with a lot of writing, highlighting over said writing, and highlighting in books and handouts. Some paper everything will bleed though, some paper nothing will. These have less bleed through than color pens, but more than black pens. Still mad about that yellow.

ASIN	B000Q5ZGIA
Age Range Description	3+ years
Best Sellers Rank	#59,330 in Office Products ( See Top 100 in Office Products ) #490 in Highlighters
Body Shape	Round
Brand	BIC
Brand Name	BIC
Closure Type	Click Off Cap
Colour	Assorted
Customer Reviews	4.8 out of 5 stars 52,251 Reviews
Global Trade Identification Number	00070330908376
Grip Type	Shaped
Hand Orientation	Left
Ink Base	Water
Ink Colour	assorted
Is Waterproof	false
Item Dimensions	9.1 x 17.5 x 1.5 Centimeters
Item Weight	159 g
Line Size	0_5mm
Manufacturer	BIC
Marker Type	Highlighter
Material Type	Plastic
Model number	BLP51W-Ast
Number Of Items	5
Number of Items	5
Number of Pieces	5
Pattern	Letter Print
Point Type	Fine
Recommended Uses For Product	Highlighting
Special Features	Non Toxic
Style Name	Chisel
Surface Recommendation	Cardboard
Target Audience	Adult, Kid
UPC	070330908376
Unit Count	5.0 Count
Warranty Description	100% Guarantee
Water Resistance Level	Not Water Resistant
Writing Instrument Form	Marker Pen

BIC Brite Liner - Pack of 5, Multi Color

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