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What are acids in skincare?

Learn more about the importance of skincare and what actives are in skincare

The image shows a collection of skincare and cosmetic products. On the left side, there are three white bottles with dropper tops, stacked on top of a white box and a round, flat container, possibly a powder compact. To the right, there are three more bottles of varying shapes and sizes, one with a black cap, another with a clear cap, and the last one appears to be a scrub, with a white lid and a flower decoration. The background is a plain, light surface, and there is a shadow of a hand holding a flower, cast on the wall behind the products. The lighting is soft, creating a gentle contrast and highlighting the textures of the bottles and containers

AHA(Alpha Hydroxy Acid)

Q. How to use?

• Start with a low concentration (5-8%) because it’s strong for the initial phase, so introduce it gradually into your routine.

• Don’t use at night because AHA makes your skin sensitive to sunlight.

• Use when your skin is dry after face wash

• If you’re a beginner, use an AHA product like toner, serum, and peel; don’t mix it with BHA.

• Use sunscreen the next day; it’s mandatory. AHA makes your skin sensitive, so sunscreen is necessary for skin protection.

Q. How to use them safely?

• Do a patch test before introducing it into your routine (try it on your jawline and neck)

• Use only 2-3 times a week.

• Don’t use on a broken and sensitive type of skin.

• Don’t use by combining with strong actives until you are experienced.

Q. Who can we use it?

• Those who have oily skin can use AHA, AHA helps to clean the pores.

• Those who have dry skin can use it for hydration.

• Those with pigmented skin can use it to help reduce dark spots.

BHA(Beta Hydroxy acid)

Q. How to use?

• Use low concentration at the beginning (0.5%- 2%)

• Best for P.M. because BHA makes your skin a little bit sensitive during day daytime.

• Use after face wash.

• Apply in three layers, don’t use in a large quantity, take 2-3 drops on a cotton pad and cover the full face (avoid eyes and mouth area).

• Use moisturizer after BHA because hydration is important after using BHA.

• Use sunscreen after applying BHA (your skin may be damaged if you don’t apply sunscreen the next morning).

Q. How to use BHA safely?

• Use 2-3 times a week

• Don’t combine with retinol, vitamin C, and AHA.

• Do a patch test before using it

• Stop temporarily if you feel burning or peeling.

• Don’t mix Benzoyl Peroxide until your dermatologist suggests.

Q. Who can use it?

• Acne-prone skin people can use it for its best for acne.

• People who have oily skin, blackheads, and whiteheads can use.

• Those who have combination skin can use it on the T-zone area.

Those who have very dry and sensitive skin must have to do a patch test before using BHA.

PHA(Polyhydroxy Acid)

Q. How to use?

• Use after face wash with a gentle (mild) cleanser.

• Use PHA serum or toner – don’t apply too much.

• Moisturizer is important after applying PHA for protection.

• Use at night – Skin looks fresh while using it at night because it exfoliates skin silently at night.

• Use sunscreen the next day (necessary).

Q. How to use safely

• If your skin is sensitive, don’t combine strong actives.

• Initially use 2-4 times a week.

• Stop using the product if you feel burning or tingling.

Q. Who can use it?

• Those who have sensitive skin can use it, preferably for exploitation.

• It has a Hydrating property, so people who have dry skin can use.

• Beginners can use it because it’s a safe option for beginners.

• Those who have redness-prone skin, use it after a patch test.

The image shows a stylized graphic of skincare product bottles with botanical elements. The graphic includes a dark blue bottle with a droplet symbol and a red pump bottle, accompanied by stylized leaves and plant sprigs in muted shades of blue and purple. The text "use it after a patch test" appears at the top of the image, suggesting the products are related to skincare and should be tested for sensitivity before regular use

Glycolic acid

Q. How to use?

• Wash your face with a mild cleanser and use it on dry skin (glycolic acid should never be applied on wet skin because it irritates).

• Use moisturizer after using glycolic acid because this acid can make your skin dry, so hydration is important

• Avoid on eye area and lips.

• Sunscreen is very, very important in next morning

Q. How to use safely?

• Patch text is very important

• Initially use 2 times (max) in a week after you increase.

• Don’t ever mix with – Retinol, vitamin C, BHA

• Avoid broken or irritated skin

Q. Who can use it?

• People who have pigmented skin can use glycolic acid to reduce tan and dark spots

• Glycolic acid removes dead skin, so people who have dull skin and uneven skin tone can use.

• Those who have oily and combination skin can use it because it unclogs the pores

• Not ideal for sensitive skin, dry skin

Combine glycolic acid with –

Niacinamide

Hyaluronic

Ceramides

Peptides

Not combine with –

Vitamin C

Retinol

Salicylic

 Benzoyl Peroxide

Lactic acid

Q. How to use?

• Use after washing your face

• Don’t use on wet skin

• Apply moisturizer after use of lactic acid product (mandatory)

• Sunscreen is important

• Use in a serum, toner, or gel form

Q. How to use safely

• If you’re a beginner, use it 2 times a week.

• Use at night, so that skin can heal properly.

• Avoid using with strong acids like retinol, glycolic.

• Lactic acid can be combined with hyaluronic acid, peptides, and ceramides.

• Do a patch test before using it on a full face.

• Tangling is normal after using lactic acid, but burning and redness occur; just stop immediately.

Q. Who can use lactic acid?

• People who have dry skin can use lactic acid

• Those who have sensitive skin can use

• Those who suffer from pigmentation and uneven skin can use it.

• People who phase aging signs can use

• Use those who have dull or lifeless skin to achieve a glow and maintain brightness.

Combine lactic acid with –

Hyaluronic acid, Nicinamide, Ceramides, Aloe vera, Peptide,

Who not to?

Vitamin C, Retinol, Salicylic, Benzoyl.

Salicylic acid

Q. How to use?

• Use after face wash on dry skin, don’t use on wet skin, if you use salicylic acid on wet it irritates.

• You can use salicylic acid on a serum, toner, face wash, gel, or moisturizer form.

• Apply to an affected area if you are a beginner.

• Wait for 5 minutes after applying so that it easily absorbs into the skin.

• Use moisture and sunscreen for hydration and protection. Skin can be sensitive, so please don’t avoid sunscreen.

Q. How to use safely?

• Introduce gradually into your routine, don’t use more than 2 times in a week if you are a beginner.

• Suitable for night.

• Apply on a clean area and avoid overuse

• A patch test is a must

• Don’t use if you’re skin has active wounds, extreme redness, or cuts.

• Don’t use after waxing or shaving

• Avoid those who have dry and sensitive skin.

• Pregnant and breastfeeding women must have to consult with doctors.

Q. Who can use it?

• Those who have oily skin can use

• People with acne-prone skin can use

• Teenagers can use it in a mild form

• Those who suffer from blackheads and whiteheads can use

Salicylic combine with –

Niacinamide, Hyaluronic acid, Aloe vera, Ceramides, Azelaic acid (with caution)

Who to not?

Retinol, AHA, Vitamin C, Benzoyl peroxide

The image shows a digital drawing illustrating skincare products and ingredients. Key elements include a mirror reflecting a wavy line, representing smooth skin or a reflection, alongside bottles and tubes of skincare products. The text visible in the image lists common skincare ingredients such as "Retinol, AHA, Vitamin C, Benzoyl peroxide" and "Urea acid," suggesting the theme of the illustration is focused on skincare. The backdrop is a light blue wavy pattern, possibly representing water or a smooth surface, commonly associated with skincare and beauty products.

Urea

Q. How to use?

• Low concentration (2%-10%) – for hydration

• High concentration (10%- 40%) – for exploitation

• Use after properly cleaning your face

• Use urea product in a cream, lotion, or ointment form

. For face – use urea moisturizer at a low %

b. For body – use creams at 10%-40% for bumpy skin, cracked heels.

• You can use the urea product in the morning and night regularly with a low percentage.

Q. How to use safely?

• Patch test is very important before using it directly on the face.

• Don’t use on sensitive areas, especially on the eyes and lips

• Use it on damp skin for better hydration

• If you want to use it regularly, then start using it on alternate days

• P P-size amount is enough for the face.

• Moisturizer and sunscreen are very important.

• Children below 12 can’t be recommended

• Pregnant and breastfeeding women should consult with a dermatologist.

Q. Who can use it?

• People who have dry skin can use

• Those who have sensitive skin can use this acid

• For those who have skin problems like bumpy arms/legs, cracked heels, and calluses, they can use.

• Those who have Oily and acne-prone skin can use it.

Vitamin c

Q. How to use?

• Use on a clean face

• Use it in a serum, toner, moisturizer, or sunscreen form.

• You can use it regularly in the morning

Q. How to use safely?

• Vitamin C is not suit for every skin, so please do a patch test before applying it.

• Start using it on a low concentration

• Store in a cool and dark place because it’s light sensitive

• Sunscreen is very important if you’re using vitamin C.

• Avoid if you have sensitive, broken, and irritated skin.

• Don’t use with a large quantity.

• Avoid if you have active acne or irritated skin.

• Breastfeeding and pregnant women should have to consult doctors.

Q. Who can use it?

• People who have dull skin can use

• Those who suffer from dark spots, pigmentation, acne marks, and tanning.

• People who sensitive skin can use it, but with low concentration

• People who have oily, dry, and combination skin can use.

Combine vitamin C with

Vitamin E + ferulic acid, Hyaluronic acid, Niacinamide, Peptides.

Not combine with

AHA/BHA, Retinol, Benzoyl peroxide,

Alpha arbutin

Q. How to use alpha arbutin safely

• Use after cleaning your face properly

• Don’t overuse

• Use moisturizer after applying alpha Arbutin

• You can use this acid in the morning or night, but remember that if you apply it in the daytime, sunscreen is important.

• Use low concentration (start slow)

• Maintain a gentle routine

• Avoid if you have sensitive skin, broken areas, irritated skin, wounds, or active acne.

• It’s pregnancy-friendly, but confirmation with the doctor is important

• Avoid if you have over-exploited skin

Q. Who can use it?

• People who have dark spots, melasma, sun tanning, uneven skin tone, and pigmentation can use alpha arbutin

• All skin types can use alpha arbutin

• Alpha arbutin is best for beginners

• People who have been looking for glowing, bright skin can use alpha arbutin

Alpha arbutin combined with Hyaluronic acid, Niacinamide, AHA, Licorice root extract, Azelaic acid.

Not combine with – Retinol, Benzoyl peroxide, high % of AHA/BHA

Retinol

Q. How to use retinol safely?

• Retinol is a very active acid, so start with a very low percentage

• Use the sandwich method – first moisturizer, then retinol, then again moisturizer. (This method protects from Irritation and dryness).

• Only use at night

• Once a week if you beginner

• Sunscreen is very important

• Hydration is very important after applying retinol because it makes your skin dry, so use a good moisturizer after applying it.

Q. Who can use it?

• People who have pimples, acne, and bumpy skin can use

• Those who suffer from uneven skin tone, dark spots

• Oily, normal, and combination skin types can use

• Don’t use if you’re not applying sunscreen daily

Retinol combined with Hyaluronic acid, Ceramides, Niacinamide, Peptides

Not combine with – Vitamin C, AHA/BHA, Benzoyl peroxide.

Benzoyl

Q. How to use safely

• Always use Benzoyl after cleaning your face

• Start using Benzoyl with a very low concentration

• Do a patch test if you feel burning, redness, or irritation. Stop using it immediately.

• Don’t apply to the full face, use only spot areas

• Dry the skin and use a good hydration moisturizer

• Use benzoyl peroxide at night

• Don’t overuse

• Don’t combine with strong actives

• Don’t use benzoyl peroxide if you have sensitive skin

• Avoids kids under 12 years

Q. Who can use benzoyl

• Those who have acne, pimples, blackheads, and whiteheads can use benzoyl

• Teenagers with hormonal acne can use Benzoyl

• Those who have an oily skin type can use

The image shows a computer screen displaying a draft post about skincare, with a cartoon-style illustration of skincare products. The text on the screen provides advice for people with oily skin, recommending combining benzoyl peroxide with niacinamide, hyaluronic acid, and azelaic acid, while advising against combining it with retinol/tretinoin, AHA/BHA, and vitamin C. The illustration features a dropper bottle, a jar, and a small container, accompanied by the text "Good skin, good mood, good day."

Combine benzoyl peroxide with – Nicinamide, Hyaluronic acid, Azelaic acid

Not combine with – Retinol/ Tretinoin, AHA/ BHA, Vitamin C.

Prachita Tomar

Hello I'm Prachita will give information about skincare

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