Forum Replies Created

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  • ketchito

    Member
    February 28, 2024 at 6:10 am in reply to: Green washing that does NOT wash

    I love the artistry and creativity. If you want to make it more challenging, add some ink to the combo, and of course, some red wine (either a cheap one, or perhaps a bottle that a bad boyfriend gave you long time ago).

  • ketchito

    Member
    February 28, 2024 at 5:51 am in reply to: Rinse-out Conditioner

    You could try with liquid emulsifiers, like Polysorbate 20, laureth-9 and PEG-40 HCO (the last one can be a bit thicker than the other ones). Now, to Spray the product, you don’t need it to be completely liquid; there are sprayable products in the market with certain thickness (I’ve seen some at up to 12,000 cps).

  • ketchito

    Member
    February 28, 2024 at 5:46 am in reply to: Formulation Issue

    Gels don’t have oil phases (unless you are formulating a cream gel, which is a different type of product). If you want a crear gel, remove all your oily materiales, since you’re forming an emulsion (that’s why the white color). By the way, I don’t see any styling polymers in your formula.

  • ketchito

    Member
    February 27, 2024 at 6:08 am in reply to: w/o cream

    W/O emulsions are inherently resistant to water, at least more than O/W. I’m not an expert on W/O emulsions, but I know that manufacturing process (especially the low addition) is key, as well as to choose the right emulsifiers and adding salt.

  • ketchito

    Member
    February 27, 2024 at 6:05 am in reply to: Hair foam formula turning cloudy

    Vitamin E (Tocopherols, not the Acetate form) is an antioxidant, and very low amounts are usually needed. I’d recommend you to keep it but in a dose around 0.1%.

  • ketchito

    Member
    February 27, 2024 at 6:01 am in reply to: Can Arginine function as a fixative in a leave-in conditioner?

    Arginine is an aminoacid, not a protein. Actually, for conditioning, a protein hydrolyzate could work a bit better for conditioning (although large peptides form brittle films). Even better if that hydrolyzate is quaternized.

  • ketchito

    Member
    February 27, 2024 at 5:57 am in reply to: What Silicone to use in Leave-in Conditioner?

    I’d choose Amodimethicone and some of the Dimethiconol gum in Cyclopentasiloxane (#2). Btw, you could get rid of the glycerine here.

  • ketchito

    Member
    February 27, 2024 at 5:55 am in reply to: Glycereth-26 (Genapol G260) alternative

    I’d just focus on balancing the surfactant system and using some film former like some silicone. If you have a clear system, PEG-12 dimethicone could be a good option.

  • ketchito

    Member
    February 27, 2024 at 5:52 am in reply to: Hair and Body Mist Formula

    That’s because your forming an emulsion since you have an emulsifier, an oil and a water source (ethanol still has some water in it). Remove the oil or use it at very low levels.

  • ketchito

    Member
    February 27, 2024 at 5:42 am in reply to: Can you please help formulating a hair & scalp serum?

    No cosmetic product can make your hair to grow. There are only two chemicals approves by FDA for this purpose (Minoxidil and Finasteride), and they both fall in the cathegory of drugs. Cosmetic active that supposedly have “clinical trials” backing them up for hair growth, fail when systematic reviews are conducted, wether because of lack of good studies or for risk of bias of the ones available.

  • ketchito

    Member
    February 26, 2024 at 10:42 pm in reply to: Preservatives: Do Consumers Actually Care?

    I think that’s the only way small brands can compete with big ones, riding every new wave of fear mongering, since they don’t have the resources (both budget and technical) that big companies have. If you check patents, they are mostly from big companies that can invest in R&D. The same happens with papers presented at big events like the IFSCC congress. Also, since small brands can’t many times afford to even have a chemist (or similar) in their team, they rely either on formulas given by a contract manufacturers or by a supplier. You’d barely see fancy ingredients in the “backbones” of big brand’s formulas, just pure science…while a small brand will have many of not really solid science-based ingredients.

  • ketchito

    Member
    February 23, 2024 at 6:06 am in reply to: Higher viscosity? What substances to increase micelles?

    There are different ways to build viscosity. You can do by mixing surfactants (as you mentioned, some anionic with specific amphoterics help you reach micellar arrangements that give some shear resistante, like worm-like micelles). There are several ecamples in the literature. Inorganic salts like sodium chloride help you reach these micellar structures faster. You can also use polymers to create entanglements between your micellar structures, or to just swell your solvent reducing movement between molecules.

  • ketchito

    Member
    February 23, 2024 at 6:00 am in reply to: Glycereth-26 (Genapol G260) alternative

    It’s usually the formula itself rather than a single ingredients what deliver the benefits. What is the benefit you want to communicate?

  • ketchito

    Member
    February 22, 2024 at 7:21 am in reply to: Why is my foundation formula separating?

    Disregarding the issues formulators have using Optiphen in emulsions, you also have more than 3% of waxes, and they are hard to emulsify. Also, 0.8% of xanthan gum can gel your water phase which can also disbalance your emulsion. I’d replace your two waxes by some cetearyl alcohol (1-2%), and reduce the xanthan gum to around 0.3%.

  • ketchito

    Member
    February 21, 2024 at 6:39 am in reply to: pink or brown in creams containing salicylic acid

    “However, methyl
    salicylate does display the normal
    instability innate to the salicylate
    group; a pink-red discoloration in
    contact with traces of iron salts.”

    Source: https://img.perfumerflavorist.com/files/base/allured/all/document/2016/02/pf.9902.pdf

    I believe the pink color drift might be caused by methyl salicylate remains in the natural salicylic acid, when in contact with traces of iron

  • ketchito

    Member
    February 21, 2024 at 6:31 am in reply to: pink or brown in creams containing salicylic acid

    “Synthetic SA is white and odorless whereas natural SA, derived from the hydrolysis of methyl salicylate, may have a slight pink or yellow tint and a faint wintergreen-like odor.”

    Source: https://www.cosmeticsandtoiletries.com/cosmetic-ingredients/actives/blog/21837700/ingredient-profile-salicylic-acid

  • ketchito

    Member
    February 20, 2024 at 8:27 am in reply to: Suspending agent for exfoliating agents

    To suspend beads you need shear resistance, and the most used polymers for that are moderarely-to-highly crosslinked polyacrylates (carbomers).

  • ketchito

    Member
    February 20, 2024 at 8:17 am in reply to: Formulating a Clarifying shampoo to remove buildup

    I agree with @onur on the type of surfactants and keratolitic (salicylic acid). Nevertheless, alcohol (I assume it’s ethanol) and glycerin are useless in cleansing products. They are small hygroscopic molecules, that will be heavily solvated and will go down the drain before delivering any real benefit.

  • ketchito

    Member
    February 20, 2024 at 7:57 am in reply to: Moroccan Argan DIY

    Cyclomethicone is the generic name for cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxabe, etc. Now, big brand use for this product a dimethiconol gum in a volatile carrier (cyclopentasiloxane). This gives viscosity to the product, good conditioning when applied and lighteness since the carrier will evaporate. You can mix this with natural oils an esters withitn their solubility limita, to create your formula.

  • ketchito

    Member
    February 19, 2024 at 7:41 am in reply to: sodium hydroxide instead of ethanolamine

    Even if you were using a 100% active NaOH, 0.2% is not nearly enough to neutralize Stearic acid so it works as an emulsifier. Check your supplier data sheet, it usually comes with a recomendación on how much of each base is enough to neutralize stearic acid.

  • ketchito

    Member
    February 19, 2024 at 7:37 am in reply to: Polyquaternium 10 incorporation in a gentle cleansing gel

    It might be the Arlypon TT salting out by the electrolytes from your surfactants (especially from CAPB). Now, why on earth to use such level of glycerin? Rather than using such level of a very hydrosoluble molecule that will rinse away without performing its magic (and depressing foam from your formula), you could focus on making a humecting and mild product.

  • ketchito

    Member
    February 16, 2024 at 7:36 am in reply to: Oils, Stability, Facial Oil Reformulation

    Natural oils are not only good for us but for our skin micriobiota. And when they feast with oils, they can release not so good compounds for our skin like oleic acid, which can be irritating for some people. Particularly, I wouldn’t use natural oils for sensitive skin.

  • ketchito

    Member
    February 16, 2024 at 7:23 am in reply to: Polyquaternium 10 incorporation in a gentle cleansing gel

    You need to add it at the start of the process into the vortex, with vigorous mixing, keeping it for some time till you see no granules. Alternatively, you can heat your water to around 60°C, since PQ-10 will mix better in warm water.

  • ketchito

    Member
    February 21, 2024 at 6:24 am in reply to: Formulating a Clarifying shampoo to remove buildup

    How are you adding Salicylic acid (SA)? If you’re using Cocamide DEA or similar, you can mix SA with Cocamide DEA with gentle heating till it’s dissolved, and then add it to the batch close to the end of the process. You could use other similar materials if you wish.

  • ketchito

    Member
    February 20, 2024 at 6:14 pm in reply to: Polyquaternium 10 incorporation in a gentle cleansing gel

    As mentioned, glycerin might not deliver the effect you want from a cleansing system. Plus, it impairs foam. Now, since water is the best and most abundant hydrating agent in contact with skin, what you can do is to lock in that moisture. For that, you can use some polymers like silicones. There are other choices but might require more complex formulas.

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