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If you’ve been scrolling TikTok or wandering the hair-care aisle at Target, there’s a good chance you’ve run into Rhyme and Reason shampoo — the recycled-bottle, “soulfully pure” brand from SLG Brands that’s built its name around naturally derived formulas for specific hair types. But with five different regimes,

mixed ratings across retailers, and a surprising number of people asking whether the brand is

discontinued or facing a lawsuit, it’s worth getting a clear picture before you buy.

We compared the current Rhyme & Reason lineup by formula, ingredients, and verified ratings from multiple

U.S. retailers, rather than just repeating the brand’s own marketing copy. Here’s what’s actually worth knowing.

Table of Contents

1. Quick Answer
2. About the Brand
3. Comparison Table
4. How We Evaluated These Products
5. 5 Rhyme & Reason Shampoo & Conditioner Sets
6. What Do the Ingredients Actually Do?
7. What Do Ratings Really Say Across Retailers?
8. Is Rhyme & Reason Discontinued?
9. The “Lawsuit” Question: What We Actually Found
10. Which Rhyme & Reason Shampoo Is Right for you
11. Frequently Asked Questions
12. Final Verdict

Quick Answer

Rhyme and Reason shampoo is a naturally derived, sulfate-free, vegan haircare line sold mainly through Target and Amazon, with separate formulas for

curly/coily hair (Quench & Curl), wavy hair (Wave Revival), dry/damaged hair (Repair & Restore), color-

treated hair (Colour Protect), and general use (Nourish

& Gloss). Ratings are generally positive across most retailers (roughly 4.2–4.6 out of 5), though some reviewers report dryness or a strong fragrance, so matching the formula to your specific hair type matters more than picking whichever bottle you see first.

About the Brand

Rhyme & Reason comes from SLG Brands, an

international haircare company that positions the brand around “soulfully pure, high performance

haircare.” The brand highlights formulas that are over 90% naturally derived, along with 1 00% recycled

bottles and caps, vegan formulations, and a 1 % For The Planet commitment that donates a portion of sales to environmental causes. Several current formulas are also enriched with a rosemary scalp serum, which the brand describes as intended to

nourish and hydrate the scalp — worth noting as scalp

care, not a hair-growth treatment, since those are different claims.

Comparison Table

How We Evaluated These Products

We looked at each Rhyme & Reason set using:

• The brand’s own stated formula positioning and ingredient highlights, cross-checked against current Amazon and retailer listings
• Verified customer ratings pulled from multiple retailers rather than a single source, since ratings can vary noticeably by platform
• Current availability, since some Rhyme & Reason variants show as unavailable on certain retailers at any given time
• Recurring themes in customer reviews — both what people like and what they don’t

We didn’t treat the brand’s own marketing claims (like “naturally derived” percentages or scalp-serum benefits) as proof of performance on their own; we’ve

noted where a claim is brand-reported versus independently verifiable.

5 Rhyme & Reason Shampoo &

Conditioner Sets

1. Quench & Curl Shampoo & Conditioner Set

— Best for Curly & Coily Hair

Overview: Formulated for curly, coily, and textured hair, blended with shea butter and desert peach ceramides to support moisture and curl definition.

Key Features: Sulfate-free, vegan, shea butter, ceramide-enriched formula.

Pros: Positive rating pattern across several retailers, lightweight feel reported by curly-hair users, widely available.

Cons: A small number of reviewers report dryness or that the scent isn’t for everyone — individual results vary by hair type and porosity

Best For: 3A–4C curl patterns looking for a moisture-focused cleanse.

2. Wave Revival Shampoo & Conditioner Set — Best for Wavy Hair

Overview: Designed to cleanse without stripping while defining and enhancing wavy hair, now enriched with a rosemary scalp serum.

Key Features: 92% naturally derived, rosemary scalp serum, frizz-taming formula.

Pros: Gentle, root-to-tip cleansing claim, pleasant

fragrance profile, targets a hair type (wavy) that’s underserved by many mainstream brands.

Cons: Some retailer reviews mention the formula feeling drying or not matching expectations for very dry wavy hair — the rosemary serum supports scalp comfort, not hair regrowth

Best For: Wavy hair (2A–2C) looking for definition without heaviness.

3. Repair and Restore Shampoo & Conditioner Combo — Best for Dry & Damaged Hair

Overview: A complete cleanse-and-condition system aimed at dry, damaged hair that needs hydration and repair-focused ingredients.

Key Features: Sulfate-free, vegan, repair-positioned formula, combo packaging.

Pros: Addresses a genuinely common concern (heat/chemical damage), convenient shampoo + conditioner pairing.

Cons: “Repair” in cosmetics generally means improved look and feel of the hair shaft, not

structurally rebuilding damaged hair — treat it a

conditioning support rather than a cure for over-processed hair.

Best For: Color-treated, heat-styled, or generally dry

and brittle hair.

4. Nourish & Gloss Shampoo & Conditioner Combo Set — Best for All Hair Types

Overview: A general-use formula built around coconut water, wild rosella flower, and hyaluronic acid,

positioned as suitable across hair types.

Key Features: Anti-frizz, smoothing finish, coconut and vanilla scent, hyaluronic acid for hydration support.

Pros: A reasonable starting point if you’re not sure which Rhyme & Reason regime fits your hair, pleasant everyday scent.

Cons: Because it’s formulated broadly rather than for one specific hair concern, it may be less targeted than

Quench & Curl or Wave Revival for very curly or very wavy hair

Best For: Straight to slightly wavy hair, or anyone wanting a general, non-targeted everyday shampoo.

5. Colour Protect Shampoo and Conditioner Set — Best for Color-Treated Hair

Overview: A 94% naturally derived formula built with babassu oil, white tea, and antioxidants, aimed at protecting color-treated hair from fading.

Key Features: Color-safe formula, antioxidant-forward ingredient list, sulfate-free.

Pros: Fills a genuine need for colored hair specifically,

rather than a general “for all hair types” claim.

Cons: Availability can fluctuate by retailer — double-check current stock before relying on this as a regular repurchase

Best For: Dyed, bleached, or highlighted hair where fade protection is the main priority.

What Do the Ingredients Actually Do?

Rhyme & Reason leans heavily on a “naturally derived” positioning, but it helps to know what the recurring

ingredients are actually doing:

• Shea Butter — an emollient that coats and softens the hair shaft, commonly used to support

moisture in curly and coily formulas.

• Ceramides — lipid-like ingredients associated with supporting the hair’s outer layer and reducing

moisture loss, though a shampoo’s brief contact

time limits how much a rinse-off product can do compared to a leave-in treatment.

• Rosemary (Scalp Serum) — included for scalp conditioning and comfort; this is a cosmetic scalp-care claim, not evidence of hair regrowth.
• Babassu Oil — a lightweight oil used for

conditioning without feeling heavy, common in color-care formulas.

• Hyaluronic Acid — a humectant that helps attract moisture to the hair; its effect in a rinse-off shampoo is generally more modest than in a

leave-in product.

None of this means the formulas don’t work — it means “naturally derived” and a long ingredient list aren’t the same thing as a specific clinical claim, and a rinse-off shampoo generally has less time to deliver deep conditioning than a leave-in or mask.

What Do Ratings Really Say Across

Retailers?

This is where things get genuinely interesting. The same Quench & Curl Shampoo currently shows

noticeably different ratings depending on where you look — generally somewhere in the low-to-mid 4-star range at major retailers, with review counts ranging from the low hundreds to over 600 at some stores.

That’s a reasonably positive pattern overall, but it’s worth knowing that retailer ratings aren’t collected the same way everywhere: some reviews are syndicated from the brand’s own site or collected as part of a promotion, which isn’t the same thing as an

independent, unprompted verified purchase.

Recurring themes across reviews tend to include praise for scent, softness, and curl definition,

alongside a smaller number of complaints about dryness, a strong fragrance, or the formula not matching expectations for very dry or very fine hair.

That pattern is normal for most mainstream shampoo brands — the takeaway is that no single rating number

tells the whole story, and checking current reviews at your preferred retailer before buying is still

worthwhile.

Is Rhyme & Reason Discontinued?

This question comes up a lot, and the honest answer is: it depends on the specific product and retailer, not the brand as a whole. As of this writing, multiple Rhyme & Reason formulas — including Quench & Curl, Wave Revival, Repair and Restore, and Colour Protect

— are still listed on Amazon and Target, though individual sizes or bundle versions can show as “currently unavailable” at any given time. That’s

common for smaller specialty brands sold through

limited retail channels rather than proof that the entire line has been pulled.

If a specific product you’re looking for isn’t showing up, it’s worth checking a couple of different retailers (Target, Amazon, Walmart) rather than assuming it’s gone for good, since availability tends to be retailer-and location-specific rather than a brand-wide

discontinuation.

The “Lawsuit” Question: What We Actually Found

Searches around “Rhyme and Reason shampoo

lawsuit” have become common enough to show up in autocomplete and related searches, largely traced back to social media posts and videos discussing

hair-loss concerns. We looked for credible news coverage, court filings, or regulatory action tied

specifically to Rhyme & Reason shampoo and did not find verified evidence of an active lawsuit against the brand at the time of writing. That doesn’t mean

individual users haven’t had bad experiences — some have reported irritation or shedding in reviews and social posts — but customer reports alone don’t establish that a product caused a specific outcome, and online chatter isn’t the same as a verified legal case. If you’re specifically concerned about this, we’d recommend checking current court records or

credible news sources directly rather than relying on social media claims either way.

Which Rhyme & Reason Shampoo Is Right for You?

If you’re also dealing with thinning rather than just dryness or frizz, a cosmetic shampoo alone — regardless of brand — generally isn’t built to address

that; our guide to the best hair moisturizer covers how to separate moisture-focused products from treatments meant for a different concern.

Frequently Asked Questions

Is Rhyme and Reason shampoo good?

Ratings are generally positive across most retailers, typically in the low-to-mid 4-star range, with recurring praise for scent and softness and occasional reports of dryness — results vary by hair type and which formula you choose.

Which Rhyme and Reason shampoo should I buy?

It depends on your hair type: Quench & Curl for

curly/coily hair, Wave Revival for wavy hair, Repair and Restore for dry/damaged hair, Colour Protect for

color-treated hair, and Nourish & Gloss as a general-use option.

Is Rhyme and Reason shampoo discontinued? The brand itself is still active, and several products remain listed on Amazon and Target, though

individual sizes or variants can show as temporarily unavailable at specific retailers.

Is there a Rhyme and Reason shampoo lawsuit?

We did not find verified news coverage or legal filings confirming an active lawsuit; most of the chatter traces back to social media discussion rather than confirmed legal action.

Where can I buy Rhyme and Reason shampoo in the USA?

It’s currently available through Target and Amazon,

with occasional listings on other marketplaces like eBay — availability and pricing can vary by retailer and location.

Does Rhyme and Reason shampoo help with hair growth?

The rosemary scalp serum used in some formulas is positioned for scalp nourishment and hydration, not clinically demonstrated hair regrowth — those are

different claims, so don’t expect a cosmetic shampoo to replace a dedicated hair-growth treatment.

Is Rhyme and Reason shampoo sulfate-free?

Yes, the brand’s shampoo and conditioner sets are generally formulated without sulfates, silicones, parabens, and mineral oil, and are marketed as vegan and cruelty-free.

Final Verdict

🥇 Best for Curly/Coily Hair: Quench & Curl Shampoo & Conditioner Set

🌊 Best for Wavy Hair: Wave Revival Shampoo &

Conditioner Set

💧 Best for Dry/Damaged Hair: Repair and Restore Shampoo & Conditioner Combo

🎨 Best for Color-Treated Hair: Colour Protect

Shampoo and Conditioner Set

✨ Best General Use: Nourish & Gloss Shampoo & Conditioner Combo Set

Rhyme and Reason shampoo is a legitimate, generally well-rated naturally derived haircare line — but like most brands, it’s not a single product so much as five different formulas built for different hair concerns.

The reports of dryness and the “discontinued” and

“lawsuit” search chatter are worth being aware of, but neither points to a brand-wide problem based on what’s currently verifiable. Matching the right regime

to your actual hair type will do more for your results than the brand name on the bottle.

Disclaimer: The products mentioned are recommendations based on research and verified customer reviews rather than in-person testing. This article is for informational purposes only and is not a substitute for professional medical or dermatological advice. Information on availability, pricing, and claims reflects what was verifiable at the time ofwriting and may change.