U.S. Beauty & Cosmetics Product Analysis Report
1. Product Information
| Field | Value |
|---|---|
| Brand | MEDITHERAPY |
| Product | MEDITHERAPY Retinal Skin Booster Serum for Smooth & Uneven Skin 5.07 fl.oz |
| ASIN | B0DG4WXBCF |
| Size | 5.07 fl.oz / 150 mL |
| Category | Serums & Actives |
| Marketplace | Amazon US |
Product Gallery
Main product images and verified customer photos, displayed three per row. Source: Amazon.
2. Product Rating
Two independent rating channels were consolidated. Amazon reports a high-volume global average; Skinsort reports a small-sample community score.
| Channel | Score | Sample | Note |
|---|---|---|---|
| Amazon | 4.3 / 5 | 14,529 global ratings | Weighted, verified purchase mix |
| Skinsort | 4.8 / 5 | 3 reviews | Price tier $$$$ (relative band) |
Amazon rating distribution
3. Product Ingredients
This section merges two independent ingredient databases — COSDNA (safety / acne / irritant ratings) and Skinsort (comedogenic / irritancy ratings) — into a single 64-ingredient table. Each ingredient is classified by function category and by a consolidated caution level.
Rating convention. Acne / irritant / comedogenic / irritancy are read "low is safer" (0 = no known risk; EM = not rated, not zero). COSDNA Safety is inverse: 1 is the safest grade and a higher number means more caution. A blank cell is "not rated," never "safe."
3.1 Ingredient caution levels
| Level | Ingredients | Meaning |
|---|---|---|
| Safe / Unrated | [50, 10, 4][0] | No rating, or only the safest grades (0–1) |
| Low Caution | [50, 10, 4][1] | At least one rating of 1–2 |
| Notable Caution | [50, 10, 4][2] | Any rating at or above 3 (upper bound) |
3.2 Function category distribution
3.3 What's inside (claim matrix)
Skinsort prints a failing claim with a "Not" prefix. Each is resolved to a clear YES / NO with any parenthetical note. The fragrance line is the highest-risk item: the product is Not Fragrance-free (Contains Fragrance).
| Claim | Result | Note |
|---|---|---|
| Alcohol-free | YES | |
| EU-allergen-free | YES | |
| Paraben-free | YES | |
| Sulfate-free | YES | |
| Cruelty-free | YES | Brand claim (not a third-party certification) |
| Reef-safe | YES | |
| Fragrance-free | NO | Contains Fragrance - flagged |
| Oil-free | NO | |
| Silicone-free | NO | |
| Fungal-acne-safe | NO | |
| Pore-clogger-free | NO | Potential pore cloggers found |
| Vegan | NO |
3.4 Benefits (12 of 12)
| Benefit | Description | Ingredients |
|---|---|---|
| Hydrating | Boosts hydration and relieves dry, tight skin. | 23 |
| Barrier Repair | Strengthen and restore your skin's natural barrier. | 23 |
| Redness Reducing | Soothes visible redness and calms irritation. | 16 |
| Reduces Irritation | Eases discomfort and supports skin resilience. | 15 |
| Anti-Aging | Softens lines and helps skin look youthful. | 14 |
| Scar Healing | Improves the look of marks and scars. | 12 |
| Skin Texture | Smooths rough patches and refines texture. | 7 |
| Brightening | Restores radiance to dull, tired skin. | 6 |
| Reduces Large Pores | Minimizes the look of enlarged pores. | 4 |
| Dark Spots | Fades dark spots for even skin tone. | 4 |
| Acne Fighting | Fights acne and helps prevent breakouts. | 3 |
| Good For Oily Skin | Balances oil and helps reduce shine. | 3 |
3.5 Concerns
These are class-level ingredient warnings, not a verdict on the product or the user.
| Concern | Description |
|---|---|
| May Trigger Acne | Can clog pores or trigger breakouts. |
| May Worsen Oily Skin | May increase shine or excess oil. |
| May Worsen Rosacea | Can trigger flare-ups in rosacea-prone skin. |
3.6 Key ingredient groups
| Group | Description | Ingredients |
|---|---|---|
| Antioxidants | Shields skin from free radical damage. | 9 |
| Vitamin C | Brightens, evens tone, and supports collagen. | 2 |
| Vitamin E | Protects skin and soothes irritation. | 2 |
| PHA | Gently exfoliates and hydrates with less irritation. | 1 |
| Retinoid | Visibly reduces the signs of aging. | 1 |
| Niacinamide | Strengthens, smooths, and brightens skin. | 1 |
| Ceramides | Locks in moisture and supports skin barrier. | 1 |
| Hyaluronic Acid | Hydrates by attracting and holding water. | 1 |
| Peptides | Supports skin hydration and improves firmness. | 1 |
| Exfoliators | Removes dead skin cells to smoothe texture. | 1 |
3.7 Community ingredient sentiment
| Sentiment | Count |
|---|---|
| Liked | 39 |
| Disliked | 16 |
| Mixed / no rating | 9 |
3.8 Complete merged ingredient table (64 of 64)
Columns: Acne / Irrit (COSDNA), Safety (COSDNA, inverse), Comed / Irrit(S) (Skinsort).
| # | Ingredient | Category | Lvl | Acne | Irrit | Safety | Comed | Irrit(S) |
|---|---|---|---|---|---|---|---|---|
| 1 | Water | Solvent | Safe / Unrated | EM | EM | 1 | EM | EM |
| 2 | Methylpropanediol | Solvent | Safe / Unrated | EM | EM | 1 | EM | EM |
| 3 | Glycerin | Moisturizing | Low Caution | 0 | 0 | 1-2 | EM | EM |
| 4 | Caprylic/Capric Triglyceride | Skin Conditioning | Safe / Unrated | 1 | EM | 1 | EM | EM |
| 5 | 1,2-Hexanediol | Solvent | Safe / Unrated | EM | EM | 1 | EM | EM |
| 6 | Propanediol | Solvent | Safe / Unrated | EM | EM | 1 | EM | EM |
| 7 | Polyglycerin-3 | Moisturizing | Safe / Unrated | EM | EM | 1 | EM | EM |
| 8 | Niacinamide | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 9 | Phenyl Trimethicone | Other / Unclassified | Safe / Unrated | EM | EM | 1 | EM | EM |
| 10 | Ammonium Acryloyldimethyltaurate/VP Copolymer | Emulsifier / Surfactant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 11 | Butylene Glycol | Moisturizing | Safe / Unrated | 1 | 0 | 1 | 1 | 0 |
| 12 | Sodium Acrylic Acid/MA Copolymer | Texture & pH Control | Safe / Unrated | EM | EM | 1 | EM | EM |
| 13 | Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 14 | Xanthan Gum | Emulsifier / Surfactant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 15 | Macadamia Ternifolia Seed Oil | Emollient | Safe / Unrated | EM | EM | 1 | EM | EM |
| 16 | Hydrogenated Lecithin | Emulsifier / Surfactant | Low Caution | EM | EM | 1-2 | EM | EM |
| 17 | Ethylhexylglycerin | Other / Unclassified | Low Caution | EM | EM | 2 | EM | EM |
| 18 | Adenosine | Other / Unclassified | Safe / Unrated | EM | EM | 1 | EM | EM |
| 19 | Carbomer | Texture & pH Control | Low Caution | 1 | 1 | 1-2 | 1 | 0 |
| 20 | Disodium EDTA | Texture & pH Control | Low Caution | EM | EM | 2 | EM | EM |
| 21 | Tromethamine | Texture & pH Control | Low Caution | EM | EM | 1-3 | EM | EM |
| 22 | Polyglyceryl-10 Laurate | Emulsifier / Surfactant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 23 | Sodium Hyaluronate | Moisturizing | Safe / Unrated | 0 | 0 | 1 | 0 | 0 |
| 24 | Cholesterol | Emollient | Safe / Unrated | 0 | 0 | 1 | 0 | 0 |
| 25 | Tocopherol | Antioxidant | Notable Caution | 2-3 | 2 | 1 | 0-3 | 0-3 |
| 26 | Brassica Campestris (Rapeseed) Sterols | Emollient | Safe / Unrated | EM | EM | 1 | EM | EM |
| 27 | Retinal 0.01% | Other / Unclassified | Notable Caution | EM | EM | 1-9 | EM | EM |
| 28 | Ascorbyl Tetraisopalmitate | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 29 | Potentilla Anserina Extract | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 30 | Caprylyl Glycol | Moisturizing | Safe / Unrated | EM | EM | 1 | EM | EM |
| 31 | Aluminum/Magnesium Hydroxide Stearate | Texture & pH Control | Safe / Unrated | EM | EM | 1 | EM | EM |
| 32 | Polyquaternium-51 | Moisturizing | Safe / Unrated | EM | EM | 1 | EM | EM |
| 33 | Cynara Scolymus Leaf Extract | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 34 | Avena Sativa Kernel Extract | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 35 | Beta-Glucan | Soothing | Safe / Unrated | EM | EM | 1 | EM | EM |
| 36 | Potassium Cetyl Phosphate | Emulsifier / Surfactant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 37 | Camellia Sinensis Leaf Water | Other / Unclassified | Safe / Unrated | EM | EM | 1 | EM | EM |
| 38 | Piper Methysticum Leaf/Root/Stem Extract | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 39 | Sodium Ascorbyl Phosphate | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 40 | Centella Asiatica Extract | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 41 | Ficus Carica Fruit Extract | Moisturizing | Safe / Unrated | EM | EM | 1 | EM | EM |
| 42 | Ceramide NP | Moisturizing | Safe / Unrated | EM | EM | 1 | EM | EM |
| 43 | Centella Asiatica Leaf Extract | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 44 | Saccharomyces Ferment | Other / Unclassified | Safe / Unrated | EM | EM | 1 | EM | EM |
| 45 | Centella Asiatica Root Extract | Botanical & Bio-ferment | Safe / Unrated | EM | EM | 1 | EM | EM |
| 46 | Canola Oil | Skin Conditioning | Notable Caution | 3 | EM | 1 | EM | EM |
| 47 | Myristyl Alcohol | Emollient | Notable Caution | 2 | 4 | 1 | 2 | 4 |
| 48 | PCA | Moisturizing | Low Caution | EM | EM | 1-2 | EM | EM |
| 49 | Acetyl Hexapeptide-1 | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 50 | Asiaticoside | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 51 | Madecassoside | Botanical & Bio-ferment | Safe / Unrated | EM | EM | 1 | EM | EM |
| 52 | Daucus Carota Sativa Seed Oil | Emollient | Safe / Unrated | EM | EM | 1 | EM | EM |
| 53 | Bifida Ferment Lysate | Other / Unclassified | Safe / Unrated | EM | EM | 1 | EM | EM |
| 54 | Lactobionic Acid | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 55 | Daucus Carota Sativa Root Extract | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 56 | Tocopheryl Acetate | Antioxidant | Low Caution | 0 | 0 | 2-3 | 0 | 0 |
| 57 | BETACAROTENE | Antioxidant | Low Caution | 1 | 0 | 2 | EM | EM |
| 58 | Helianthus Annuus Seed Oil | Botanical & Bio-ferment | Safe / Unrated | 0 | 0 | 1 | 0 | 0 |
| 59 | Panthenol | Moisturizing | Safe / Unrated | 0 | 0 | 1 | 0 | 0 |
| 60 | Polygonum Cuspidatum Root Extract | Antioxidant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 61 | Sucrose Distearate | Emollient | Low Caution | 0 | 2 | 1 | 0 | 2 |
| 62 | Hydroxypropyl Cyclodextrin | Emulsifier / Surfactant | Safe / Unrated | EM | EM | 1 | EM | EM |
| 63 | Madecassic Acid | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
| 64 | Asiatic Acid | Skin Conditioning | Safe / Unrated | EM | EM | 1 | EM | EM |
4. User Reviews
Amazon carries 14,529 global ratings (average 4.3 / 5). The review titles below are shown anonymously (Reviewer #N); reviewer identities are withheld.
- Reviewer #1: Does not irritate sensitive skin plus amazingly fast results
- Reviewer #2: The price is cheap for what it does, amazing
- Reviewer #3: Noticeable Improvement in Skin Texture After Two Weeks
- Reviewer #4: Pretty good for a first time retinal user
- Reviewer #5: A little goes a long way, great all over Serum
- Reviewer #6: It works with consistent use. The price cannot be beat.
- Reviewer #7: Not oily/greasy at all, it absorbs nicely and my skin feels soft
- Reviewer #8: It's a Marathon, not a Sprint!
- Reviewer #9: Highly recommended! (translated)
- Reviewer #10: 0.01% Retinal - ideal for sensitive skin (translated)
- Reviewer #11: I love it! (translated)
- Reviewer #12: Bof (translated - underwhelmed)
- Reviewer #13: Great product
5. Product Price
Price history is sourced from the Amazon US marketplace. The Amazon first-party listing currently shows $19.99 (from a $24.99 list, 20% savings). The table below is the all-time summary from the price-tracking record.
| Price Type | Lowest Ever | Highest Ever | Current | Average |
|---|---|---|---|---|
| Amazon | $22.65 | $26.30 | $23.80 | $23.29 |
| 3rd Party New | $11.36 | $24.99 | $19.99 | $17.53 |
5.1 Price comparison (bar chart)
5.2 Price trend over time (dynamic)
The first-party Amazon price has traded inside a narrow band since monitoring began (Oct 2024), while the third-party-new channel is far more volatile, dipping to $11.36 in Feb 2026. The marketplace channel is currently the cheaper route for this product.
6. Methodology & Sources
- Amazon product & review data: captured from the Amazon US product page (title, price, rating histogram, review titles). Reviewer identities withheld.
- COSDNA: public ingredient page read through the WebFetch channel (Cloudflare-protected); 64 ingredients with acne / irritant / safety ratings.
- Skinsort: full product page read through the r.jina.ai reader channel; 64 ingredients with comedogenic / irritancy ratings, claim matrix, benefits, concerns, key groups.
- Price history: all-time summary from the Amazon US price tracker.
- Caution levels: consolidated from every rating channel using upper bounds of any printed range; COSDNA Safety normalised by subtracting 1 so it aligns with the risk scales.
COSDNA and Skinsort are community-sourced databases. Their ratings are aggregated reference material, not regulatory or dermatological conclusions. "Not rated" is missing data, not a safety guarantee.