AmazonIn stock signal
$3.99
$4.99
-
$3.99 /
View dealPrice as of September 22, 2026, subject to change.
All-Time Low
query_stats Price history & deal verdict
Once
The Once Once is currently trading at $3.99, representing a substantial 80% markdown against its 90-day moving average of $20.07. At an effective unit rate of $3.99 / null, this listing stands out as one of the most cost-efficient offerings... Read full analysis & FAQs ↓
Current price
shopping_cartCheck price on Amazon$3.99$4.99
Price as of September 22, 2026, subject to change.Current low$3.99Amazon
90-day avg$20.07historical SKU average
Today vs avg80% belowworth checking
Last checkedSep 22confirm at checkout
local_fire_departmentAll-Time LowVerdict: Strong Buy
Record Lowest Price Tracked ($3.99)
PetPriceWatch has monitored this SKU across 180 days: this is the lowest price ever recorded. A prime buying window before the price rebounds.
180-Day Price RangeCurrent: $3.99
All-Time Low$3.9990-Day Avg$20.07180-Day High$20.84
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timeline Price history
90-day price movement
Oct 14, 2026$3.99Tracked merchant
Current best$3.99down from $20.84
Range low$3.99Sep 22
90-day avg$20.07current is favorable
Jul 1690-day avg $20.07Oct 14
Current best price is $16.08 below the 90-day avg. Chart starts at Jul 16 because that is the earliest observed point in this window. Recent range: $3.99 to $20.84.
straighten Unit economics
Use price as the final filter
Confirm product fit, package size, and use case before choosing the lowest current price.
$3.99 / Current one-time unit price
0 Tracked package size
Unit pricecompare similar products first
check_circle13% below category avg ($4.59/null)Save $0.60 /
Favorable unit cost: $3.99/null beats the market average ($4.59/null) by 13%.
calculateCalculate S&S Autoship Savings →rate_reviewExpert Buyer's Analysis
Once Once In-Depth Value Review
Exceptional Value: Currently 80% Below 90-Day Baseline
The Once Once is currently trading at $3.99, representing a substantial 80% markdown against its 90-day moving average of $20.07. At an effective unit rate of $3.99 / null, this listing stands out as one of the most cost-efficient offerings in the Dog category. For households with dogs that rely on this formulation, the current pricing window represents an opportune time to replenish inventory or stockpile before prices revert to historical medians.
💡 PetPriceWatch Purchasing Strategy:Lock in the current deal at $3.99. If purchasing through Amazon, stacking Subscribe & Save can yield an additional 5% to 15% discount, bringing the effective price down even further to as low as $3.39.
check_circle
Key Advantages
- Competitive unit economics: priced at $3.99 / null in the Dog segment.
- Reputable brand pedigree: Once provides transparent ingredient sourcing and quality control.
- Verified price dip: current price is 80% lower than recent 90-day pricing.
- Subscription eligible: supports automated recurring delivery discounts up to 15% on major merchant platforms.
info
Things to Consider
- Package size considerations: the 0 null volume requires airtight, dry storage to preserve freshness.
- Promotional volatility: prices frequently rebalance when manufacturer coupons expire; monitoring alerts is advised for bulk buyers.
petsPet Compatibility & Feeding Profile
Target Pet: Dogs
Life Stage: All Life Stages
Package Size: 0
Designed for standard daily maintenance for dogs. Follow manufacturer dosing guidelines on the 0 null package.
help_outline
Frequently Asked Questions about Once Once
Is $3.99 a good price for Once Once?
Yes. At $3.99, this product is discounted 80% below its 90-day average price of $20.07. It represents an advantageous purchase window compared to typical retail benchmarks.
What is the unit cost of Once Once?
The normalized unit cost for this 0 null package is $3.99 / null. Tracking cost per unit allows pet parents to accurately compare value across different bag sizes, multi-packs, and competing brands.
How can I save more money on Once Dog?
To maximize savings, look for Amazon Subscribe & Save options to unlock 5% to 15% off, compare multi-pack unit costs, and utilize PetPriceWatch to track historical price floors so you buy during promotional dips rather than at peak retail.
Who is this Once product best suited for?
This product is formulated for dogs (All Life Stages). It is well suited for pet owners seeking dependable dog from a recognized brand with verified consumer ratings.
Knowledge Hub
View All GuidesRelated Expert Guides & Resources
Buying Guide
Why Price-Per-Ounce Is the Secret Weapon for Smarter Pet Food Shopping
Discover how comparing unit costs and tracking price history can save hundreds on pet supplies.
Buying GuideThe PetMetric Guide to Comparing Unit Costs and Never Overpaying
Learn the exact method price-conscious shoppers use to time purchases and maximize Subscribe & Save discounts.
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