Skip to content
TrackPin
Check a price
Menu
Developers

Theme

111SKIN Y Theorem Repair Serum NAC Y2 | Reduce Redness & Fine Lines | Restore & Soothe Skin (1.01 oz)

Rated3.9(7 ratings)Only 13 left

Great price

$144.78 is 31% below the $212.49 it normally sells for, and the lowest we've seen in 139 days.

Now
$144.78
Normally
$212.49
Lowest in 139 days
$144.78(Nov 9)
Highest
$339.99
Evidence: Strong139 days tracked92 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $144.78. No account, no newsletter.

The listing's crossed-out price

Holds up

The listing shows

crossed out: Typical $249.99 −42%

Against its normal price

−31% vs $212.49

Typical $249.99 (−42%) holds up: today's price is 31% below normal.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Price history

Tracked since Jun 24 · 139 days · 92 price changes

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $212.49
  • 5% or more below normal

How often does it drop below normal?

In the 139 days we've tracked it, this is the first time it has stayed 5% or more below today's normal price for an hour or more. It has been below normal for about 2 days so far. Brief dips under an hour (8) aren't counted.

A count of what happened, not a prediction.

More real deals in Beauty

See all
Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B00U3CWDUK
Request
curl https://trackpin.co/api/v1/product/B00U3CWDUK \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 17:59 UTC
{
  "asin": "B00U3CWDUK",
  "title": "111SKIN Y Theorem Repair Serum NAC Y2 | Reduce Redness & Fine Lines | Restore & Soothe Skin (1.01 oz)",
  "image": "https://m.media-amazon.com/images/I/511Pj2PvXzL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Beauty",
  "category_label": "Beauty",
  "in_stock": true,
  "price": {
    "current_cents": 14478,
    "reference_cents": 21249,
    "discount_pct": 31.87,
    "is_deal": true,
    "observed_at": 1794402592203,
    "changed_at": 1794201778116,
    "checked_at": 1794402592203,
    "source": "stored"
  },
  "verdict": {
    "label": "great",
    "text": "Great price",
    "pct_vs_normal": 31.87,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Great price. $144.78 is 31% below the $212.49 it normally sells for, and the lowest we've seen in 139 days."
  },
  "listing_claim": {
    "label": "Typical:",
    "listing_reference_cents": 24999,
    "claimed_pct": 42,
    "real_pct": 31.87,
    "class": "holds_up",
    "observed_at": 1794201791648
  },
  "stats": {
    "min_cents": 14478,
    "max_cents": 33999,
    "avg_cents": 26369,
    "history_days": 139,
    "price_levels": 264,
    "price_changes": 92,
    "distinct_prices": 8,
    "lowest_at": 1794201778116
  },
  "history": [
    {
      "price_cents": 14478,
      "from": 1794093229184,
      "to": 1794093229184
    },
    {
      "price_cents": 21249,
      "from": 1794094180110,
      "to": 1794171410921
    },
    {
      "price_cents": 14478,
      "from": 1794181728241,
      "to": 1794181728241
    },
    {
      "price_cents": 21249,
      "from": 1794182251158,
      "to": 1794198976992
    },
    {
      "price_cents": 14478,
      "from": 1794201778116,
      "to": 1794402592203
    }
  ],
  "last_seen": 1794402592203
}
// … 259 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.