SD Alcohol 38-C helps products dry quickly and feel light, but can be drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
SD Alcohol 38-C helps products dry quickly and feel light, but can be drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
SD Alcohol 38-D is a fast-drying solvent that can help other ingredients penetrate, but it may be drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
SD Alcohol 38-F is a fast-evaporating solvent that can help products feel lightweight but may be drying or irritating for sensitive skin.
Irritation
moderate
Source
synthetic
SD Alcohol 39-D is a fast-evaporating solvent that can help control oil and enhance product feel, but it may dry and irritate sensitive or dry skin.
Irritation
high
Source
synthetic
Effective for quick-drying and oil control, but can be drying and irritating for sensitive or dry skin types.
Irritation
moderate
Source
synthetic
SD Alcohol 46 helps products dry quickly and feel refreshing, but it can be drying and irritating for sensitive or dry skin types.
Irritation
moderate
Source
synthetic
A gentle, antioxidant-rich plant extract that may help calm skin and protect against environmental stress.
Irritation
low
Source
natural
A gentle marine plant extract with antioxidant potential, but research is still early and benefits are not yet proven in human skin.
Irritation
low
Source
natural
A gentle, antioxidant-rich extract from a salt-tolerant plant that may help calm and protect skin, though research is still early.
Irritation
low
Source
natural
A gentle botanical powder from a salt-tolerant plant, offering antioxidant benefits but with limited research in cosmetic use.
Irritation
low
Source
natural
A mild, conditioning surfactant from sea buckthorn that cleanses without stripping the skin.
Irritation
low
Source
semi-synthetic
A gentle, antioxidant-rich extract from sea buckthorn callus cells that may help soothe and protect the skin.
Irritation
low
Source
biotech
A gentle fermented fruit extract that helps soothe and protect the skin with antioxidants.
Irritation
low
Source
biotech
Antioxidant
KLUYVEROMYCES/LACTOBACILLUS/HIPPOPHAE RHAMNOIDES OIL FERMENT FILTRATE
A fermented sea buckthorn oil that combines natural antioxidants with probiotic benefits for soothing and nourishing the skin.
Irritation
low
Source
biotech
A gentle, antioxidant-rich water from sea buckthorn fruit that hydrates and soothes skin without the oiliness of the seed oil.
Irritation
low
Source
natural
A gentle, natural exfoliating powder rich in antioxidants, ideal for sensitive skin types looking for mild physical exfoliation.
Irritation
low
Source
natural
A gentle, antioxidant-rich oil extract that helps soothe and nourish the skin without clogging pores.
Irritation
low
Source
natural
A gentle, antioxidant-rich botanical powder that may help calm skin and provide mild exfoliation, though research on its topical benefits is still emerging.
Irritation
low
Source
natural
A gentle, antioxidant-rich powder that can help soothe and lightly exfoliate skin without stripping it.
Irritation
low
Source
natural
A gentle, mineral-rich clay extract that helps absorb excess oil and impurities without over-drying, suitable for most skin types.
Irritation
low
Source
natural
A fermented sea cucumber extract that may help hydrate and calm the skin, but research is still early.
Irritation
low
Source
biotech
A gentle, lab-grown antioxidant from sea fennel that helps calm skin and fight environmental stress without irritation.
Irritation
low
Source
biotech
A gentle, antioxidant-rich extract from sea fennel callus that helps protect skin from environmental stress and supports a calm, even complexion.
Irritation
low
Source
biotech
Sea fennel powder is a gentle botanical ingredient that may help calm skin and fight free radical damage, though research is still emerging.
Irritation
low
Source
natural
A gentle, antioxidant-rich algae ferment that may help calm skin and fight environmental stress, though human studies are limited.
Irritation
low
Source
biotech
A gentle, antioxidant-rich fruit extract that helps protect skin from environmental stress and may calm irritation.
Irritation
low
Source
natural
A novel fermented marine ingredient with antioxidant potential, but human studies are scarce and it's best used as a supporting rather than star ingredient.
Irritation
low
Source
biotech
A lab-grown sea holly extract that may help calm skin and fight environmental stress, but human studies are limited.
Irritation
low
Source
biotech
A gentle, plant-based antioxidant that may help protect skin from environmental stress and support a calm complexion.
Irritation
low
Source
biotech
Sea kale extract is a gentle, antioxidant-rich botanical that may help soothe skin and protect against environmental stress, but research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based antioxidant that may help calm skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
Sea lavender extract is a gentle botanical antioxidant that may help calm skin and fight environmental stress, but research is still limited.
Irritation
low
Source
natural
A gentle seaweed extract that helps hydrate and calm the skin, but research on its specific benefits is still limited.
Irritation
low
Source
natural
A gentle botanical extract that may help calm skin and fight free radicals, but research is still limited.
Irritation
low
Source
natural
A gentle, chamomile-relative extract that may help calm irritated skin and provide antioxidant protection, though research is still emerging.
Irritation
low
Source
natural
A gentle, plant-based powder that may help calm irritated skin and provide antioxidant protection, though research is limited.
Irritation
low
Source
natural
A novel peptide that may help support skin firmness, but research is still early and benefits are not yet proven in large human studies.
Irritation
low
Source
biotech
A gentle, plant-derived extract with antioxidant and soothing potential, though research is still early.
Irritation
low
Source
natural
Sea salt can be a gentle physical exfoliant and mineral source, but it may be drying or irritating for sensitive or dehydrated skin.
Irritation
moderate
Source
natural
A gentle fermented ingredient that helps hydrate and strengthen the skin barrier, ideal for sensitive and dry skin types.
Irritation
low
Source
biotech
A gentle, fermented ingredient that may help calm and condition skin, but research is still early.
Irritation
low
Source
biotech
Sea silt is a gentle, mineral-rich exfoliant that can help polish skin and absorb excess oil without harshness.
Irritation
low
Source
natural
A gentle, mineral-packed marine extract that helps calm and nourish the skin without clogging pores.
Irritation
low
Source
natural
A gentle fermented ingredient that may help hydrate and support the skin barrier, but research is still limited.
Irritation
low
Source
biotech
A gentle plant extract with antioxidant potential, but research on its specific skin benefits is still limited.
Irritation
low
Source
natural
Sea water provides a mineral-rich boost of hydration and can help soothe the skin, but it's not a miracle ingredient and may not suit very dry or sensitive skin types.
Irritation
low
Source
natural
A gentle marine extract that may help calm irritated skin and fight free radicals, but research is still early.
Irritation
low
Source
natural
Sea Wormwood Oil offers soothing and antimicrobial benefits but can be irritating for sensitive skin due to its essential oil content.
Irritation
moderate
Source
natural
A gentle marine extract that helps calm irritation and protect skin from environmental stress, ideal for sensitive or reactive skin types.
Irritation
low
Source
natural
Seahorse extract is a traditional marine ingredient with limited modern research for cosmetic use; its benefits are largely anecdotal and sustainability concerns are significant.
Irritation
low
Source
natural
Seal oil is a moisturizing marine oil with omega-3s, but its use raises ethical and sustainability concerns, and it may clog pores for some.
Irritation
low
Source
natural
A gentle, lab-grown seaweed extract that may help calm irritation and defend against environmental stress, though human research is still limited.
Irritation
low
Source
biotech
A gentle seaweed blend that helps hydrate and calm the skin, suitable for most skin types.
Irritation
low
Source
natural
A gentle, hydrating seaweed extract that helps soothe and protect the skin, making it a great choice for sensitive or dry skin types.
Irritation
low
Source
natural
Humectant
ASCOPHYLLUM NODOSUM/FUCUS VESICULOSUS/LAMINARIA CLOUSTONI/LAMINARIA DIGITATA EXTRACT
A gentle, nutrient-packed seaweed blend that hydrates and soothes skin with antioxidant benefits.
Irritation
low
Source
natural
Humectant
ASCOPHYLLUM NODOSUM/FUCUS VESICULOSUS/HIZIKIA FUSIFORME/KJELLMANIELLA GYRATA/LESSONIA NIGRESCENS/SACCHARINA ANGUSTATA/SACCHARINA JAPONICA/UNDARIA PINNATIFIDA EXTRACT
A nourishing seaweed blend that hydrates, soothes, and protects skin with antioxidants, but its complex sourcing may vary in potency.
Irritation
low
Source
natural
A gentle seaweed blend that hydrates and provides antioxidant protection, ideal for most skin types.
Irritation
low
Source
natural
Humectant
Chondrus Elatus/Saccharina Angustata/Monostroma Nitidum Thallus Extract
A gentle seaweed blend that helps hydrate and calm the skin, but research on this specific mix is limited.
Irritation
low
Source
natural
A fermented seaweed-yeast complex that helps hydrate and soothe skin while supporting a healthy barrier.
Irritation
low
Source
biotech
Sebacic acid is a gentle, plant-derived ingredient that helps balance product pH and offers mild exfoliation without significant irritation.
Irritation
low
Source
natural