⚠️ This post is informational, not an endorsement. Quit Kit is a commercial product some members of this community have used. We’re explaining what it is, what’s in it, and how it compares to building a similar stack yourself for less money. Not medical advice. Talk to your prescriber before starting any supplement, especially if you’re on Suboxone, LDN, or other medications.
A note on naming: there are at least two similarly-named products in this space — Quit Kit at tryquitkit.com and QuitK at quitk.com (sold via Soul Supplements). They’re separate products with overlapping marketing. The general analysis below applies to both, though specific formulations and prices differ.
What it is
Quit Kit and QuitK are commercial supplement stacks marketed specifically for kratom, 7-OH, and opioid withdrawal. They come as morning and nighttime capsule packs, typically taken for several weeks before and during a taper. Both products are made of well-known recovery supplements bundled into convenient pre-packed doses.
Common ingredients (varies by product):
- Magnesium glycinate — anxiety, sleep, restless legs
- L-tyrosine — dopamine precursor, helps motivation and anhedonia
- L-theanine — calming without sedation
- NAC — glutamate modulator, reduces cravings
- GABA — calming neurotransmitter (oral GABA absorption is debated; effects are mostly placebo or via gut signaling)
- 5-HTP — serotonin precursor
- Ashwagandha — adaptogen, cortisol regulation
- Valerian root, passion flower — calming herbs for sleep
- Agmatine — proposed to reduce opioid tolerance
- B vitamins, vitamin D, zinc — foundational nutrients depleted during withdrawal
This is a reasonable formulation. Most of these ingredients have at least some evidence supporting their use in withdrawal contexts and overlap heavily with what’s recommended in #vitamins-supplements and #what-is-paws. The convenience of pre-packaged morning/night doses is real.
The honest tradeoff
The case for buying it:
- Convenient, especially in the haze of acute withdrawal when assembling a stack feels overwhelming
- Pre-dosed so you don’t have to measure individual supplements
- One purchase instead of 8-12 separate bottles
- Some users genuinely report it helped them get through
The case against:
- Significantly more expensive than building it yourself. A 30-day supply runs around $50-75; an equivalent DIY stack from quality brands costs roughly $25-40 for the same period.
- Doses for individual ingredients aren’t always optimal — proprietary blends can hide actual amounts of each compound.
- You can’t adjust if one ingredient causes side effects (e.g., 5-HTP being problematic if you’re on antidepressants).
- The marketing leans heavily on testimonials and emotional appeals; the actual mechanism is just supplements that exist independently.
- It’s not a magic bullet. Reviews include people who say it helped and people who say it didn’t. The supplements are real; the framing as a “kit” doesn’t add pharmacological value beyond what the individual components do.
Building it yourself: a comparable DIY stack
Here’s what an equivalent stack looks like if you put it together from individual supplements. Prices are approximate and vary by brand. Look for third-party tested brands (NOW Foods, Nature’s Way, Pure Encapsulations, Thorne, Doctor’s Best are reliable mid-priced options).
Morning stack:
- L-tyrosine 500-1000mg — ~$10-15 for 60-90 day supply
- NAC 600mg — ~$10-15 for 60-day supply
- B-complex with methylated forms — ~$15-20 for 60-day supply
- Vitamin D3 + K2 — ~$10-15 for 90-day supply
- Rhodiola rosea 200-400mg (optional, for fatigue/motivation) — ~$10-15
Evening stack:
- Magnesium glycinate 200-400mg — ~$10-15 for 60-90 day supply
- L-theanine 100-200mg — ~$10-15 for 60-90 day supply
- Ashwagandha 300-600mg — ~$10-15 for 60-day supply
- Glycine 3g (powder is cheapest) — ~$10-15 for 90+ day supply
- Melatonin 0.3-1mg (low dose) — ~$5-10
Optional add-ons:
- Omega-3 (EPA/DHA) — ~$15-20 for 60-day supply
- 5-HTP if not on antidepressants — ~$10-15 for 60-day supply
- Valerian or passionflower for sleep if needed — ~$10 for 60-day supply
Total for foundational stack: roughly $80-120 for a 60-day supply, which works out to $40-60/month, vs. roughly $50-75/month for the commercial kits (and that’s before optional add-ons that the commercial kits don’t include like omega-3).
The DIY stack also lets you:
- See exact doses of each ingredient
- Drop or substitute anything that doesn’t agree with you
- Adjust doses up or down based on how you’re responding
- Add things the commercial kit doesn’t include
- Shop sales, use Amazon Subscribe & Save, etc.
What we don’t recommend
A few specific concerns about both Quit Kit and QuitK:
- 5-HTP is in some of these products and can interact dangerously with antidepressants (SSRIs, SNRIs, MAOIs, tramadol) — risk of serotonin syndrome. If you’re on any psychiatric medication, check the ingredient list carefully or build your own stack and skip 5-HTP.
- GABA orally is mostly marketing; it doesn’t cross the blood-brain barrier well. The calming effects come from other ingredients, not GABA itself.
- Proprietary blends that don’t disclose individual ingredient doses make it impossible to know what you’re actually getting.
- Marketing language (“backed by science,” “12-in-1,” etc.) is essentially supplement industry standard. The supplements work because of what they are, not because they’re packaged as a “kit.”
Bottom line
If you can afford it and convenience matters more than cost, the commercial kits are a reasonable starting point. The ingredients are real. People have used them and gotten through withdrawal.
If you’re cost-conscious, want full control, or have any prescription medications, building your own stack is straightforward and significantly cheaper. See #vitamins-supplements for the full guide on individual supplements, brands, and dosing.
Either way: supplements help, but they’re not the main event. Sleep, hydration, lifestyle, and (for some) medical support like Suboxone or LDN do the heaviest lifting. Don’t let any commercial product convince you it’s the difference between success and failure — it isn’t.