Works for:
based on ingredients and %- Anti-aging
- Moisturizing
- Exfoliation
- Evens skin tone
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 0
Key actives
Product Summary
"Estelle and Thild - Estelle Thild BioDefense Active Youth Serum" is effective for: Exfoliation, Evens skin tone and Anti-aging
This product could be helpful for: Anti-oxidation and Moisturizing, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- This product contains acids (gluconolactone 1.40% - 1.70%). Their concentration is low, and they will not have a strong exfoliating effect. Instead, they work to support the skin natural acid mantle and to attract water (as humectants). PHAs (gluconolactone) especially are great for improving skin hydration. They might be even able to stimulate the production of skin's natural humectants and support the healthy skin microbiome.
- Humectants (saccharide isomerate 3.00% - 3.60% and glycerin 3.80% - 4.70%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Anti-aging
What does the product description say?
Prevents signs of premature aging, boosts radiance and hydrates.
Source: Naturisimo
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains gluconolactone.
Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Is claimed to stimulate collagen and elastin production, as well as work as an anti-oxidant. There is however not enough evidence for its effectiveness
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Evens skin tone
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: gluconolactone
Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Exfoliation
This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: gluconolactone.
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Anti-oxidation
This product contains antioxidants (camellia sinensis leaf extract, ficus carica fruit extract, gluconolactone) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
A plant extract that can help neutralize free radicals. The concentrations typically used in cosmetics are too small to have an effect
A plant extract that might help neutralize free radicals in skin, but research on its efficacy in skin is lacking
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
Is claimed to stimulate collagen and elastin production, as well as work as an anti-oxidant. There is however not enough evidence for its effectiveness
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Moisturizing
What does the product description say?
Prevents signs of premature aging, boosts radiance and hydrates.
Source: Naturisimo
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
glycerin, saccharide isomerate.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: simmondsia chinensis seed oil, rosa canina fruit oil.
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
Helps attract water to the upper layer of the skin
Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Is claimed to stimulate collagen and elastin production, as well as work as an anti-oxidant. There is however not enough evidence for its effectiveness
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
An emollient that is naturally present in skin and helps soften it
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Moisturizing |
Total Promises Fulfilled score: 87/100.
Potential irritants
Comedogenic ingredients
No comedogenic ingredients detected
User reviews (0)
Averages from community submissions.
No reviews yet for this product.
Be the first to share your experience!
Tried this product?
Help capture what the ingredient list can't—texture, finish, pilling, scent, and more. Answer what you can, skip the rest.
Takes ~30 seconds.
Reviews are shown in aggregate. No personal details.
| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Estelle and Thild Estelle Thild BioDefense Active Youth Serum | Current | - | |
 Jack Black PureScience CBD CBD + HA Serum | 58% | $55.00 | |
Fourth Ray Beauty Avocado + Aloe Double Shot Serum | 58% | - | |
 Luzern Laboratories Luzern Firming Collagen Booster | 57% | $180.00 | |
Soskin A+ Contour Lift Serum Face & Neck Ορός Σύσφιξης για Πρόσωπο & Λαιμό | 56% | $27.20 | |
 Tropic Skincare RAINFOREST DEW hydration serum - Rainforest Dew | 56% | $44.00 |
Key Actives
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Helps attract water to the upper layer of the skin
Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.
A plant extract that can help neutralize free radicals. The concentrations typically used in cosmetics are too small to have an effect
Potential irritants
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
An aromatic blend of unspecified and possibly irritating ingredients
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
A plant extract that might help neutralize free radicals in skin, but research on its efficacy in skin is lacking
A plant extract that can help neutralize free radicals. The concentrations typically used in cosmetics are too small to have an effect
Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products
Can work as an exfoliant but is typically used to adjust the product pH
Comedogenic ingredients
We couldn't find any comedogenic ingredients in this product
All ingredients
Used to add a nice rose smell to the product. Might help attract water to the upper layer of the skin and have some anti-oxidant effect. Can be irritating
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.
Is claimed to stimulate collagen and elastin production, as well as work as an anti-oxidant. There is however not enough evidence for its effectiveness
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
A plant extract that might help neutralize free radicals in skin, but research on its efficacy in skin is lacking
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
A plant extract that can help neutralize free radicals. The concentrations typically used in cosmetics are too small to have an effect
An emollient that is naturally present in skin and helps soften it
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
Helps to control the skin's pH level. Maintains the skin's natural film of amino-lactic acids and oils. Helps to preserve products
Used to stabilize the product formulation and can help absorb oil
An aromatic blend of unspecified and possibly irritating ingredients
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
Can work as an exfoliant but is typically used to adjust the product pH
Ingredient list view
Water, Rosa damascena flower water, Glycerin, Saccharide isomerate, Rosa canina fruit oil, Simmondsia chinensis seed oil, Dipalmitoyl hydroxyproline, Gluconolactone, Vaccinium myrtillus fruit extract, Camellia sinensis leaf extract, Glyceryl caprylate, Ficus carica fruit extract, Palmitic acid, Tocopherol, Cetearyl olivate, Sclerotium gum, Xanthan gum, Sodium citrate, Maltodextrin, Sorbitan olivate, Parfum, Citronellol, Geraniol, Limonene, Linalool, Sodium gluconate, Citric acid, Sodium benzoate, Potassium sorbate, Sorbic acid
- Annex I: Clinical evidence regarding sensitisation to individual fragrance chemicals and to natural extracts
- Glycerol and the skin: holistic approach to its origin and functions
- A comparative study of gluconolactone versus benzoyl peroxide in the treatment of acne
- The Polyhydroxy Acid Gluconolactone Protects Against Ultraviolet Radiation in an In Vitro Model of Cutaneous Photoaging
- Applications of hydroxy acids: classification, mechanisms, and photoactivity
- The efficacy of glycolic acid, salicylic acid, gluconolactone, and licochalcone A combined with 0.1% adapalene vs adapalene monotherapy in mild-to-moderate acne vulgaris: a double-blinded within-person comparative study
- A polyhydroxy acid skin care regimen provides antiaging effects comparable to an alpha-hydroxyacid regimen
- The use of polyhydroxy acids (PHAs) in photoaged skin
- Blackwell Publishing, Ltd. Alpha-hydroxyacids and carboxylic acids
- An evaluation of a polyhydroxy acid skin care regimen in combination with azelaic acid 15% gel in rosacea patients
- Aging Skin: Causes, Treatments, and Prevention
- Clinical and cosmeceutical uses of hydroxyacids
- Polyhydroxy Acids (PHAs) Provide Conditioning Effects to Skin Without Increasing Sensitivity to UV Light
- Lonicera caerulea and Vaccinium myrtillus fruit polyphenols protect HaCaT keratinocytes against UVB-induced phototoxic stress and DNA damage
- Herbal Medicine: Biomolecular and Clinical Aspects. 2nd edition.
- Vitamin E in dermatology
- Vitamin E and Skin Health