Larine Remineralizing gum & toothpaste
A nano-hydroxyapatite oral care brand selling gum, toothpaste, mints and pouches, with a 30-day first-purchase guarantee and early evidence for hydroxyapatite in toothpaste, held back by subscription and billing complaints, inconsistent price displays and a 3.0 Trustpilot score.
Disclosure: this page contains an affiliate link. If you buy through it we may earn a commission at no extra cost to you, and it never changes a score.
An oral care brand riding a real but early ingredient story, with billing and pricing details you should check before you order
Larine, also styled Larineco, sells gum, toothpaste, breath mints, pouches and kits built around nano-hydroxyapatite, mostly direct to consumers. It publishes a refund policy, a shipping policy and terms, and it offers a 30-day guarantee on the first purchase of each product.
There is genuine research behind hydroxyapatite in toothpaste: a 2024 systematic review concluded it can work as an anti-caries ingredient without fluoride, although some of its authors have ties to a hydroxyapatite company and none of the studies tested Larine. The American Dental Association still recommends fluoride toothpaste that carries its Seal. On the service side, Trustpilot shows 3.0 out of 5 from 883 reviews, with 48% one-star and repeated complaints about unexpected subscriptions and slow cancellation, the site shows inconsistent prices and conflicting offers, and the refund policy has narrow rules. We have not used any Larine product, and this is not dental advice; talk to a dentist.
Right for
- Shoppers who want to try hydroxyapatite oral care and will read the label and the terms first
- Buyers who will check the cart for any subscription or add-on before paying
- People who have already discussed products with their dentist
Wrong for
- Anyone who wants proof that Larine's gum, mints or pouches prevent cavities
- Buyers who might not notice recurring charges
- People who want a refund after a repeat purchase or based on results alone
+What it gets right
- Research exists for hydroxyapatite. A 2024 systematic review and meta-analysis concluded that hydroxyapatite is effective as an anti-caries active ingredient without fluoride.
- Guarantee on a first purchase. A 30-day money-back guarantee on the first purchase of each product per household, and the product may be used.
- Disclaimers are shown. The pages state that the claims have not been evaluated by the FDA and advise consulting a dentist for persistent concerns.
- The company replies to complaints. Trustpilot says Larine replies to 93% of negative reviews, typically within 48 hours.
- Reviewers like taste and feel. Trustpilot reviewers describe good flavors, fresh breath and a clean feel, especially for mint.
−Where it slips
- No studies of Larine products. The research we found covers hydroxyapatite toothpaste generally, not Larine's toothpaste, gum, mints or pouches.
- Subscription complaints dominate. Trustpilot reviewers describe being enrolled in recurring orders without clear consent and cancellation that was hard or slow.
- Inconsistent prices and offers. We saw one listing where the sale price was higher than the regular price and an offer of 50% off alongside a $30 pop-up for two gum packs.
- Refund rules are narrow. One refund per product per household, no refund for damaged or incorrect items (replacement only), return shipping paid by the customer and returns need prior authorization.
- Cavity-defense wording. The page says hydroxyapatite helps create a stronger defense against cavities while also stating that the products are not intended to prevent any disease.
- Contact and company details are inconsistent. The terms and footer give two different addresses and the email shown differs from the email in the link; no phone number is listed.
Weighted for evidence, billing fairness, guarantee, pricing clarity, shipping and reputation
Evidence, billing terms and reputation carry the most weight. This is a desk-research score: we have not used any Larine product, and nothing here is dental or medical advice.
The long version
What Larine sells, what the evidence shows, how the guarantee, billing and shipping work and what customers report.
What Larine is
Larine, styled Larineco on parts of its site, is operated by Larine C Corporation and sells oral care products built around nano-hydroxyapatite: remineralizing gum in 18-piece boxes, remineralizing toothpaste, breath mints, remineralizing pouches and starter kits. The program we were given was listed under the name Dental Experts Tips, and that site shows the same Larine storefront, so we review the brand as Larine. The pages name nano-hydroxyapatite, xylitol, hydrated silica and bamboo charcoal but do not give full ingredient lists or amounts.
The brand's claims include that hydroxyapatite strengthens enamel, eases sensitivity and helps create a stronger daily defense against cavities, and that silica and charcoal remove surface stains. It cites a rating of 4.8 from 2,847+ reviews, a June 2026 self-reported survey of 128 customers and a FrontrowMD badge saying 614 clinicians shared it without compensation. We could not verify any of these.
Products and prices
On 30 Oct 2026 the store listed remineralizing gum at $9.99, pouches at $14.99, toothpaste and breath mints at $29.99, and the Enamel Starter Kit at $134.96 with free gifts, plus bundles such as the Enamel Complete Kit, Gum Variety Pack and Daily Duo without prices. Bestseller tiles showed different pairs, for example toothpaste at $24.99 against $29.99, and gum at $9.99 against $19.99. One listing showed a breath-mints sale price of $79.98 above the $29.99 regular price, and a pop-up offered two Cinnamon gum packs for $30 against $50 while another line said to select at least 2 boxes for 50% off a first order.
The cart said how much more you needed to spend to reach free shipping, with $50 shown as the threshold. Because the offers and price displays do not agree, take a screenshot of the cart and check the total, any bonus packs and any recurring-order option before paying.
The evidence
Hydroxyapatite is a mineral that makes up much of tooth enamel, and the research on it in toothpaste is real but young. A 2024 systematic review and meta-analysis in the Journal of Dentistry (December 2024) included 5 clinical trials and 8 in situ trials and concluded that hydroxyapatite is effective as an anti-caries active ingredient in the absence of fluoride. Two of its authors are employed by a company that sells hydroxyapatite products and all received travel grants from it, and the page we read did not give a head-to-head comparison with fluoride toothpaste.
The American Dental Association takes a different line on the product category: it says toothpastes with a cavity-protection claim and the ADA Seal of Acceptance must contain fluoride, and in a May 2025 statement it recommends brushing twice daily with fluoride toothpaste, cleaning between teeth daily and seeing a dentist regularly. The ADA pages we read do not mention hydroxyapatite. We found no independent study of Larine's own products, and the toothpaste research does not show that gum, mints or pouches prevent cavities. We could not confirm from the pages we read whether any Larine product contains fluoride, so check the label.
Guarantee and refunds
The refund policy (last updated 23 Feb 2026) gives a 30-day money-back guarantee on the first purchase of each product per household, counted from confirmed delivery, with only one refund per product per household. Proof of purchase is required, the product may be used, and repeat purchases do not qualify for dissatisfaction refunds. You must email [email protected] for prior authorization, ship the return with tracking at your own cost and wait for inspection; refunds go to the original payment method in typically 5 to 7 business days, and shipping and handling fees are not refunded.
Damaged, defective or incorrect items must be reported within 15 days and are replaced at the company's discretion; the policy says refunds will not be issued for them. Exclusions include claims based only on personal expectations of results, misuse, discount abuse and chargebacks filed without first contacting support, which may cost you refund eligibility permanently.
Subscription and billing
The terms of service say you can cancel or change a subscription at any time before the next scheduled billing date, through your account settings or by emailing [email protected]. Failing to cancel before the next cycle means automatic renewal and billing, cancelling after an order has been processed or shipped does not refund it, and pausing is not mentioned. We did not place an order, so we could not see whether the checkout defaults to a subscription.
Trustpilot reviewers say it is. The most common complaint is being enrolled in recurring orders without clear consent and finding it hard or impossible to order without a subscription. Others describe cancellation that was hard to find or slow, charges after asking to pause and one refused refund. The terms also require a written notice of dispute, binding arbitration under American Arbitration Association consumer rules, a class-action waiver, and New Jersey law, with an option to use Ocean County, New Jersey small-claims court. Larine C Corporation's address in the terms (Point Pleasant Beach, New Jersey) differs from the footer address (Conroe, Texas).
Shipping
Orders are typically processed within one business day, and US delivery is estimated at 7 to 14 business days, which the policy says is not guaranteed. International times vary by destination, shipping costs appear at checkout, and the policy states no free-shipping threshold, though the cart showed $50. Customers pay any customs duties and taxes, address changes must be requested within one hour of ordering, and declining the shipping protection add-on means you carry the risk of loss in transit.
What customers report
Trustpilot showed a profile (claimed since June 2025, with a paid subscription) at 3.0 out of 5 from 883 reviews on 30 Oct 2026, 814 of them in the last 12 months, with 34% five-star, 10% four-star, 5% three-star, 3% two-star and 48% one-star. The company replies to 93% of negative reviews, typically within 48 hours.
Positive reviews praise taste, fresh breath, a clean smooth feel and convenient pouches, and some report less sensitivity or better gum health. Negative reviews are mostly about billing: unexpected subscriptions, hard cancellation, too many boxes, orders not combined and slow first deliveries. Some users say they noticed no clear change after several weeks, and some mention dry or stale product. Other review pages we found were affiliate-style roundups, so we did not treat them as independent.
Buying advice
Talk to your dentist before relying on any remineralizing product, especially if you have sensitivity, cavities or gum problems; this is not dental advice. Read the ingredient label for the type and amount of each active, and check whether it contains fluoride. Before paying, screenshot the cart, look for any recurring-order or shipping-protection add-on, note the renewal date and know how to cancel. Remember the guarantee covers a first purchase of each product, not repeat orders. For a checklist, read our guide on how to evaluate a remineralizing toothpaste, and for a related health brand see our Healflux review.
Everything on paper
Figures from buylarine.com, its refund, shipping and terms pages, PubMed, the ADA and Trustpilot, checked 30 Oct 2026.
Prices, offers and policies change often. Check the product page and the policies that apply when you buy.
Products at a glance
Prices as displayed on buylarine.com on 30 Oct 2026. Several listings showed more than one price.
| Product | Prices displayed | Named actives | What we know |
|---|---|---|---|
| Remineralizing toothpaste | $29.99 (also $24.99 against $29.99) | Nano-hydroxyapatite, hydrated silica | Closest to the hydroxyapatite toothpaste research; no study of this product |
| Remineralizing gum | $9.99 (also $9.99 against $19.99) | Nano-hydroxyapatite, xylitol | 18 pieces a box; no study of gum found |
| Breath mints | $29.99 (also $24.99; one listing $79.98) | Nano-hydroxyapatite | Inconsistent price display; no study found |
| Remineralizing pouches | $14.99 (also $9.99 against $14.99) | Nano-hydroxyapatite | No study found |
| Enamel Starter Kit | $134.96 regular | Kit of products | Free gifts listed; contents not itemized on the pages we read |
If you are comparing toothpastes, the label and your dentist matter more than the product name. Our remineralizing toothpaste checklist explains what the ADA Seal requires and what the research covers.
Questions people actually ask
Is Larine legit?
What is Larine?
Does Larine remineralizing gum work?
Does Larine offer a money-back guarantee?
How do I cancel a Larine subscription?
How long does Larine shipping take?
Does hydroxyapatite toothpaste replace fluoride?
Shop Larine
Read the label, check the cart for any recurring order, screenshot the price and know how to cancel before you pay. This is not dental advice; talk to your dentist.
Larine
Nano-hydroxyapatite gum, toothpaste, mints and pouches with a 30-day first-purchase guarantee.
Shop LarineRemineralizing toothpaste
Listed at $29.99; check the label and the cart before paying.
See the toothpaste at LarinePrices observed 30 Oct 2026 and subject to change. This is an affiliate link.
An early ingredient story with billing details that need a close read
Larine's hydroxyapatite angle has real research behind it for toothpaste, and the first-purchase guarantee and prompt Trustpilot replies are points in its favor.
Weigh the lack of studies on its own products, the subscription and cancellation complaints, the inconsistent prices and the narrow refund rules, and talk to your dentist before relying on it.
Consider it if you
- You will read the label and check for fluoride
- You will screenshot the cart and watch for recurring orders
- You have discussed remineralizing products with your dentist
Skip it if you
- You want proof that these products prevent cavities
- You might not notice a subscription
- You want refunds on repeat orders or based on results
How this review was put together
This is a desk-research review. We have not used any Larine product, we did not place an order, and nothing here is dental or medical advice. Prices, offers and policies come from buylarine.com (checked 30 Oct 2026), research from a PubMed abstract and ADA pages, and reputation from the Trustpilot profile for buylarine.com. Other review pages we found were affiliate-style roundups and we did not treat them as independent. We wrote our own text. The images are our own screenshots of public Larine pages, taken on 30 Oct 2026 and shown for review and commentary; the content and branding belong to Larine, and we will remove them if asked. We did not download or reuse image files or logos, and we did not review the brand's affiliate programme terms.
Big Time Bikers is independent and is not affiliated with, sponsored or endorsed by Larine. The link to Larine is an affiliate link: if you buy through it we may earn a commission at no extra cost to you, and this never changes a score. We did not receive payment or a free product for this review.