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Description
group 5 herbicide Triad QC Select Herbicide – A to Z Lawn SupplyTriad QC Select provides post emergent control of a comprehensive list of both grassy and broadleaf weeds. Can be used on residential and non residential lawns and turf, athletic fields, roadsides, parks, golf turf (except tees, greens and collars). Contains same combination of active ingredients as Quincept with even more Quinclorac Combines 3 active ingredients to help eliminate hard to control weeds Perfect late season clean up product for areas
Triad QC Select™ provides post-emergent control of a comprehensive list of both grassy and broadleaf weeds. Can be used on residential and non-residential lawns and turf, athletic fields, roadsides, parks, golf turf (except tees, greens and collars).
- Contains same combination of active ingredients as Quincept with even more Quinclorac
- Combines 3 active ingredients to help eliminate hard to control weeds
- Perfect late season clean up product for areas that didn’t receive pre-emergent herbicide application in the spring
- Controls newly germinated 1- to 2-leaf crabgrass, to 1-tiller crabgrass and when crabgrass has matured to 5-tillers or greater
- Presence of Quinclorac contributes to control of grassy weeds, is absorbed by the foliage and roots
Labeled use sites include:
- Residential and nonresidential turfgrass, including lawns or grounds around residential establishments
- Athletic fields
- Parks
- Roadsides
- Golf course turf – not for use on greens, tees and collars
- Sod farms
Weeds controlled include:
- Barnyard grass
- Black medic
- Boxelder
- Broadleaf dock
- Burweed
- Carpetweed
- Chickweed
- Clover
- Crabgrass, large and smooth
- Dandelion
- Dock
- Dogbane
- Elderberry
- Fall dandelion
- Fiddleneck
- Field bindweed
- Ground ivy
- Hedge bindweed
- Henbit
- Horsetail
- Knotweed
- Morning glory
- Nettle
- Oxalis
- Plantain
- Russian pigweed
- St. Johnswort
- Shepherds purse
- Smartweed
- Spurge
- Thistle
- Trailing crown vetch
- Virginia buttonweed
- Virginia creeper
- White clover
- Wild carrot
- Wild vetch
- Willow
- Woodsorrel
- Yarrow
- Yellow rocket
| Active Ingredient | |
| Manufacturer | Prime Source, LLC |
| Label |
Triad QC Select Label |
| SDS | Triad QC Select SDS |
| Not for sale to: | AK, AZ, HI |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
GET THIS
THIS IS IT. This needs to be a permanent beauty staple item in your toolkit! I use Dennis Gross acid wipes for my face, it has erased my melasma with maintenance of course but this stuff is THE item for your body and crepey skin. Dennis Gross wipes are too expensive and small to use over your whole body. Amlactin is amazing but it does have that signature lactic acid smell and sometimes I don’t want lotion on me. I had never heard of Prequel before this. It was cheap enough and had all the acids I was looking for. I’ve only been using it for one week and it definitely has all the lactic acid magic in it! The wrinkle bend creases on my wrists are gone. My sun damage freckles and spots are fading. It’s so fast and easy to use. It dries fast. I put it on my arms and legs every single night while watching my bedtime TV routine. I’m here to buy a second bottle. I’m not a bot! Ladies we need this. I’ll update some photos later on. I’m sad I didn’t take a before photo. Also, remember any lactic acid products you MUST wear sunscreen after/during treatment. It makes you more prone to burn. I haven’t used this on my chest area sun damage but I have used PTR acid products there and it works phenomenally. Sometimes it pills so I may switch to this for my chest.
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Reviewed in the United States on May 9, 2026
★★★★★ 4
Great results when used carefully
This is a strong exfoliating peel, and it definitely works. The milk texture spreads easily and feels controlled, but you can tell right away that this is not a beginner exfoliant. At 15% glycolic acid, it delivers noticeable smoothing and brightness when used carefully.
I started slowly and kept my routine very simple afterward, focusing on hydration and barrier support. Used this way, it helped refine texture and made my skin look clearer and more even. When I increased usage too quickly, I noticed dryness, which was a good reminder that this peel needs to be respected.
I would recommend this to experienced skincare users who are comfortable with chemical exfoliation and understand the importance of spacing treatments and supporting the skin barrier. It’s effective, but not something to rush or overuse. I used less than the recommended amount and it was still a little spicy for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
Restored my glow and smoothness in ONE use!
Restored my glow and smoothness in ONE use!
I am 47, and I’ve really started to notice my skin losing its natural glow and becoming a bit dull. I decided to try the Prequel Multi-Acid Milk, and I am honestly obsessed.
The results were immediate—literally after one use, my skin felt incredibly soft and hydrated. I’ve been using it twice a week, and the difference is night and day. My skin looks much younger, smoother, and that healthy radiance is finally back.
If you struggle with any kind of roughness or uneven texture, this is the solution. It completely clears it up. It’s rare to find a product that delivers such fast results without being harsh. If you're on the fence, definitely give it a try!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Excellent product
It’s amazing. Not too harsh but does the trick. I love this product. My face flushes a little but is normal by in the morning. My skin glows like it never did before. It took about a week for me to see an obvious difference in my complexion. I am sold on continuing to use this daily. It’s not as expensive as a face peel or microdermabrasion.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Effective Toner
Staple product! This has a tiny sting that lets me know it’s working. My skin feels so smooth my makeup is gliding on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
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