Roo's Verdict
Top picks ranked by relevance and unit price.
We compared thousands of retinol serums from $9.30 to $81 across Target, Walmart, and Amazon. The RoC Retinol Capsules Night Serum (30ct) priced at $24.99 on Target is our best value pick at 4.5 stars with over 4,166 reviews — $15.66 more than the Equate Retinol Serum (1oz) at $9.87 on Walmart, which has a lower but competitive rating of 4.6 stars.
💰 Budget
The Ordinary Retinol Serum (1.01oz) is the budget option at $9.30 on Target, rated 4.2 stars with 676 reviews. It offers a good price but lacks the broad popularity of our best value pick.
⭐ Top Rated
The Ordinary Retinol Serum 1% at $9.90 on Amazon is our top-rated serum at 4.6 stars with 14,600 reviews. It provides a higher strength retinol option than our best value pick but is priced similarly.
3 stores
compared in real time
84+ products
tracked for this search
771% price gap
$9.3 – $81.00 range
Updated Feb 13, 2026
prices verified today
How we ranked Retinol Serum: Shopperoo compared 84+ options across 3 stores (Amazon, Target, Walmart) and scored each on price , star rating, review volume, and availability. The cheapest option is $9.3 at Target — 771% less than the highest-priced equivalent. Roo's best value pick is "RoC Retinol Capsules Night Serum 30ct" at Target for $24.99 (4.5 ★ from 4.2K reviews). Rankings are updated in real time and are not influenced by retailer fees or sponsored placements.
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Quick Comparison: Top Picks
Best Value
RoC Retinol Capsules Night Serum 30ct
$24.99 at Target
- ✓30 capsules for targeted treatment with 4.5 stars from 4,166+ reviews
- ✓Specialized anti-aging benefits at a competitive price
- ✕Higher price than budget options with fewer total ounces
Budget
The Ordinary Retinol Serum 1.01oz
$9.30 at Target
- ✓Lowest price at $9.30 for essential retinol benefits
- ✕Fewer reviews and lower star rating than best value
Top Rated
Retinol Collagen Serum 1.70oz
$19.99 at Amazon
- ✓High-strength 1% retinol at 4.6 stars with 14,600+ reviews
- ✕Similar price to best value but with different benefits
What to Look For in Retinol Serum
- Concentration: Higher percentages lead to faster results but may irritate sensitive skin.
- Formulation: Encapsulation increases absorption while squalane can provide moisturizing effects.
- Packaging: Dark glass bottles help preserve retinol efficacy by protecting it from light.
How Shopperoo Compares Products
Shopperoo's AI scans live pricing from Amazon, Walmart, Target, Kroger, and other major retailers, then ranks products by balancing price, ratings, review count, and availability. Our best value pick isn't just the cheapest — it's the product with the best combination of low price and high customer satisfaction. Learn more about our methodology
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FAQ: Retinol Serum
Where is Retinol Serum cheapest right now?
The budget Retinol Serum is $9.3 at Target — "The Ordinary Retinol Serum 1.01oz". The most expensive is $81.00 at Amazon — a 771% price gap for comparable products. Price gaps this wide typically reflect differences in pack size, bundle inclusions, or retailer promotional cycles. Shopperoo checks 3 stores in real time so this reflects today's live pricing as of Feb 13, 2026.
What's the best value Retinol Serum?
Roo's best value pick is "RoC Retinol Capsules Night Serum 30ct" at Target for $24.99 - it scores best on price ($2.38), rating (4.5★ from 4.2K reviews) and availability.
Which stores have Retinol Serum?
Shopperoo found Retinol Serum in stock at all 3 stores we track: Amazon, Target, Walmart. Amazon carries the widest selection, followed by Target. Store availability and pricing are checked in real time — if a store sells out or changes its price, Shopperoo updates within hours. Prices last verified Feb 13, 2026.
How does Shopperoo rank Retinol Serum?
Shopperoo pulls live product data from 3 retailers and scores each Retinol Serum on four factors: price, star rating, number of verified reviews, and real-time stock availability. Products are grouped into three lists — Best Value, Top Rated, and Lowest Price — so shoppers can choose based on their priorities. No retailer pays to appear in these rankings; placement is determined solely by the score.
How much can I save on Retinol Serum?
Choosing Shopperoo's best-value pick saves $56 compared to Amazon's default top result. Amazon's algorithm surfaces sponsored and Prime-eligible products first, which aren't always the best price. The full price spread across all 3 stores is 771% — $71.70 between the cheapest and most expensive comparable option. Shopperoo's rankings are not influenced by affiliate fees or sponsored placements.